Peptides: Signal, Carrier, Copper — Which Ones Actually Do Anything?
'Peptides' is one word standing in for a dozen unrelated molecules with wildly different evidence — most serums are hope in a bottle, but a few classes earn their place.
Not yet assessed for Aging
What Makes This Different
It keeps a declared 1,000 ppm copper tripeptide-1 in its own sealed glass ampoule, away from the sheet essence, and pairs it with purified madecassoside and asiaticoside rather than a crude centella extract, in a fragrance-, alcohol- and oil-free gel; that is a more careful way to deliver a reactive copper complex than mixing it into a wet sheet. The catch is that only the ampoule's ingredients are published, so the sheet essence is taken on trust.
Chando
Chando Copper Peptide Ampoule Mask Review
Sealed-Ampoule Copper Peptide
mask sheet-mask c beauty Paraben Free Fungal Acne Safe Vegan Not Cruelty Free
A two-step mask whose clever part is the packaging: a declared 0.1 percent copper tripeptide-1 kept in a sealed glass ampoule with purified centella actives, applied fresh after an alginate sheet has done the hydrating. It is fragrance-free, calm and pleasant, and the peptide dose is real. The wrinkle evidence is thinner than the marketing, and the sheet's own ingredient list has never been published in English.
Made in China Launched 2022 All-year use PAO: 6 months
Run it through our tools Clashes with my routine? Pregnancy-safe? Find a cheaper dupe Patch-test it first
Only the ampoule's ingredient list is published for this mask, the sheet essence's formula and Chando's 1,000 ppm copper peptide testing remain internal, and the English-language review record since the 2025 YesStyle listing is a couple of dozen entries at most. The assessment is drawn from the ampoule INCI and the declared dose weighed against the laboratory and small-trial literature on GHK-Cu and centella triterpenes; a verified record of the finished mask's performance does not yet exist.
Verdicts All dehydration products →All dullness products →
How well it fits each concern
Verdict by concern tap a concern for the case
Good choicefor DehydrationIn your profileYou chose · Glycerin is a reference standard by mechanism for dehydration; this sheet mask carries it high in the ingredient list.
The case for it
- Glycereth-26 and Dipropylene Glycol has trial-supported standing for this concern.
- It is present at an effective concentration, declared or high in the ingredient list.
- The formula carries none of the triggers this concern is sensitive to.
Same rule for everyone. “Good choice” is the verdict on 9,564 of 45,024 concern verdicts across the catalog; rule R5 decided 9,072 of them. As of September 25, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
Show the work
- Rule
- R5 — Trial-supported or guideline-supported active, adequately or plausibly dosed. · the full register
- Carrying active
- Glycereth-26 and Dipropylene Glycol
- Standing
- supported — its mechanism is established
- Form
- adequate — studied range 20%, from the trials on the row; needs leave-on contact; judge it after ~1 weeks
- Tolerability
- gentle
- Row checked
- against its sources on July 17, 2026 (evidence table ev-2026.09-r228)
The studies behind the evidence row
- USP glycerin monograph / Fluhr et al., glycerol and the skin (review) — glycerin is the reference humectant, drawing and holding water in the stratum corneum — reference work
Promisingfor DullnessIn your profileYou chose · Glycerin has trial-level evidence for dullness but no guideline or regulatory standing yet — promising, short of a recommendation; the other actives here are not yet assessed for it.
The case for it
- Glycereth-26 and Dipropylene Glycol has trial-level evidence for this concern but no guideline or regulatory standing yet.
- It is present at an effective concentration, declared or high in the ingredient list.
- The formula carries none of the triggers this concern is sensitive to.
What would change this: Guideline or regulatory standing for the active on this concern would move this from a promising bet to a recommendation.
Same rule for everyone. “Promising” is the verdict on 7,858 of 45,024 concern verdicts across the catalog; rule R9p decided 7,858 of them. As of September 25, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
Show the work
- Rule
- R9p — 0.5.0: 'Unproven' beside three filled dots read as one question answered twice with opposite words (7,018 rows). The chip measures standing, the dots measure trial volume; where the row carries at least one RCT or a tier-2 source (moderate dots) and the active is present at a working level, the honest word is Promising. Unproven is reserved for plausible-standing rows with limited or weak evidence, or an under-dosed form. Same rank as Unproven — a bet either way; the dots order them. · the full register
- Carrying active
- Glycereth-26 and Dipropylene Glycol
- Standing
- plausible — trials support it
- Form
- adequate — studied range 2–20%, from the trials on the row; needs leave-on contact; judge it after ~1 weeks
- Tolerability
- gentle
- Row checked
- against its sources on July 17, 2026 (evidence table ev-2026.09-r228)
The studies behind the evidence row
- Harry's Cosmeticology / Baran & Maibach Textbook of Cosmetic Dermatology — humectant, emollient and occlusive classification — standard reference text
Also listed for Aging — the actives here (Glycerin, Betaine, Copper Peptides, Centella Asiatica) are in our research queue for that concern; there is no verdict until their evidence rows are written. That is a gap in our table, not a mark against the product.
As a maskNot judged: what a mask is for — works within its wear time, benefit outlasts the mask, comes off cleanly — cannot yet be measured from the ingredient list (only intensity without injury can).
Where our review and the verdict differ. The review below was written on the formulation and the published trials; the verdicts above apply the stricter standing test in our methodology — an active earns a recommendation only with guideline or regulatory standing for the concern. Where the two disagree, the verdict is DermApproved’s position.
A verdict is DermApproved’s assessment of how well a product’s ingredients fit a concern — never a claim about what the product treats. Evidence dots and collected reviews sit beside it and are never blended in. Rules 0.5.1 · evidence table ev-2026.09-r228 · how we decide
Assessment
Pros & Cons
Pros
- ✓ Copper tripeptide-1 declared at 1,000 ppm, a genuine 0.1 percent dose
- ✓ Sealed glass ampoule keeps the reactive copper complex stable until use
- ✓ Purified madecassoside and asiaticoside instead of a crude centella extract
- ✓ Ampoule is fragrance-free, alcohol-free, oil-free and silicone-light
- ✓ Alginate fibre sheet moulds closely and stays wet for twenty minutes
- ✓ Pregnancy-compatible firming step with no retinoid or acid
- ✓ Calm enough for reactive skin on most faces
Cons
- ✗ Only the 1.5 mL ampoule's ingredient list is published; the sheet essence is not
- ✗ GHK-Cu's wrinkle evidence is laboratory-heavy and thin in controlled trials
- ✗ Two or three sessions a week is a fraction of the exposure the trials used
- ✗ Ampoule is fiddly to snap and easy to spill
- ✗ Cannot be layered with vitamin C in the same session
- ✗ Five masks a box at export pricing adds up over a two-month course
Review
Full Review
GHK-Cu, the blue copper peptide, is a difficult guest. It reacts with vitamin C, it is fussy about pH, it can be pulled apart by strong chelators, and in a wet sheet mask sitting in a warehouse for a year it would have every chance to lose its copper and its point. Chando's answer, which is the reason this mask is worth writing about, is not to put it in the sheet at all. The Copper Peptide Ampoule Mask keeps its declared 1,000 ppm of copper tripeptide-1 in a 1.5 mL glass ampoule sealed inside the sachet, to be snapped and applied after the sheet has come off. The sheet hydrates; the ampoule treats; the two never meet until they meet on the face. For a mass-market Chinese sheet mask, that is a thoughtful piece of formulation logic, and it is the sort of thing that separates a real product from a peptide on a label.
The dose is the second thing to say in its favour. A thousand parts per million is 0.1 percent, which sounds small until you learn that most of the cosmetic research on GHK-Cu used concentrations in exactly that range and that plenty of Western peptide serums carry less. The ampoule's sixteen-ingredient list is a clean gel: water, a glycol, a glycerin ether, betaine, a mild silicone-glycol for slip, a carbomer thickener, standard preservatives, the copper peptide, and then madecassoside and asiaticoside, the purified triterpenes of centella, chosen over a crude extract so the doses are defined. No fragrance, no alcohol, no oil, no essential oil. It spreads over freshly masked skin as a cool, clear serum and is gone in a minute. It is a good little formula.
What the copper peptide can do is where the review has to slow down. In cell culture and animal wound models GHK-Cu has an impressive record: it stimulates collagen and elastin synthesis, recruits repair cells, modulates the enzymes that remodel damaged tissue and, in gene-expression work, resets a striking number of genes toward a younger pattern. That research is real and it is why the molecule has a following that borders on devotion, particularly in China, where demand for it more than doubled in a single recent year. What it does not have is a strong body of controlled trials on wrinkles in ordinary skin. The few that exist are small, sponsored and mostly encouraging; they show improved firmness and some fine-line softening over eight to twelve weeks of daily use. A mask used two or three times a week is a fraction of that exposure. The fair expectation is skin that feels plumper and calmer after each session and perhaps looks a little smoother after two months, not a lifted face.
The sheet itself is a quiet pleasure. It is an alginate fibre, made from seaweed, thin and translucent and much better at moulding to the contours of a face than the thick cotton of older masks, and it stays wet for the full twenty minutes. The sachet advertises Himalayan barley beta-glucan and glacier water for the essence, and the essence feels appropriately hydrating and soothing. It is also where the honest caveat lives, because the ingredient list that Chando's export retailer publishes for this product is the ampoule's, not the sheet's: there is no beta-glucan on it, no alginate, and nothing that could account for 33 mL of essence. The sheet's full formula has not been published in English, and neither has any of the brand's testing. For most users that is a shrug. For anyone with a specific allergy, it is a reason to patch-test the sheet half separately, and for a site that grades on ingredient lists it is the reason this mask scores below its niacinamide sibling, whose full sheet formula is public.
Chando itself is not a mystery. The company was founded in Shanghai in 2001, is one of the largest domestic skincare groups in China and one of its biggest sheet-mask sellers, and runs an R&D centre of around twenty laboratories with a Himalaya research institute since 2017. The 2-step ampoule masks are a major franchise at home, and the discipline in the ampoule, sealed glass, defined triterpenes, no irritants, reflects a company that understands the molecule it is selling. It just has not told the English-speaking world everything that is in the other half of the sachet.
The practical notes are simple. Snap the ampoule away from the face and pour quickly; the glass is small and a third of the serum is easy to lose. Keep vitamin C for the morning, since copper and ascorbic acid make poor bedfellows in one layer. Use it two or three times a week, as Chando advises, and not more, because it is a high-activity mask rather than a daily hydrator. And seal it with a moisturizer, because the ampoule is water-thin and leaves nothing behind to hold moisture in.
At ¥138 for five in China, about nineteen dollars, and around CA$26 on YesStyle before shipping, the box costs roughly four dollars a session, which is mid-range for a two-step sheet and cheap for a declared 0.1 percent copper peptide in its own vial. For dry, dull or early-ageing skin that wants a fragrance-free firming ritual and an honest peptide dose, and that can tolerate the fact that the peptide's wrinkle evidence is still catching up with its reputation, it is a good buy. For a reader who needs every ingredient on the table before it touches their face, the sheet half of this product is not yet ready to be trusted.
Formula
Key Ingredients
The hero actives that drive this product's performance.
| Ingredient | Function | Evidence |
|---|---|---|
| Copper Tripeptide-1 (GHK-Cu) 1,000 ppm (0.1%) | The blue copper complex sits at a declared 1,000 ppm, or 0.1 percent, in the 1.5 mL ampoule, which is a genuine working level for a peptide that has laboratory evidence for stimulating collagen and elastin synthesis and wound remodelling; sealing it in its own glass vial keeps the copper complex away from the sheet essence, where it would otherwise degrade or react, and it is applied as a concentrated second layer after the mask has hydrated the skin. | Not yet assessed |
| Madecassoside and Asiaticoside (Centella Asiatica actives) | The two purified centella triterpenes close the ampoule list, chosen over a crude extract so the doses are defined; they calm the mild redness a peptide-rich session can provoke, support the barrier and share the copper peptide's collagen-signalling story, and they are what lets Chando call a wrinkle mask sensitive-skin-friendly. | Not yet assessed |
| Betaine | The sugar-beet osmolyte fifth on the ampoule list, a humectant that holds water in the upper skin without stickiness and cushions the peptide serum so it spreads as a light, cool gel rather than a tacky film after the sheet comes off. | Established mechanism for Dehydration · established mechanism |
| Glycereth-26 and Dipropylene Glycol (humectant base) | A glycerin ether and a light glycol form the water-binding skeleton of the ampoule, keeping the serum fluid, non-greasy and quick to absorb over skin already saturated by twenty minutes under the sheet; they are why the second step leaves a smooth finish rather than a slick. | Established mechanism for Dehydration · established mechanism |
Ingredient standings describe the active at treatment-level doses and vehicles; this product's own condition grades weigh its actual formula.
Full INCI List
Water, Dipropylene Glycol, Bis-PEG-15 Methyl Ether Dimethicone, Glycereth-26, Betaine, PEG-8, Butylene Glycol, Phenoxyethanol, Caprylyl Glycol, 1,2-Hexanediol, Carbomer, Aminomethyl Propanol, Copper Tripeptide-1, Xanthan Gum, Madecassoside, Asiaticoside
✓ Pregnancy Safe ✓ Fragrance Free✓ Alcohol Free✓ Oil Free✗ Silicone Free✓ Paraben Free✓ Sulfate Free✗ Cruelty Free✓ Vegan✓ Fungal Acne Safe
copper tripeptide-1 (mild tingling on reactive skin)
Compatibility
Skin Match
Best For
Routine Step
treatment
Time of Day
PM
Layering Tips
Slot it into two or three evenings a week where the serum would normally go: sheet for fifteen to twenty minutes, essence patted in, ampoule pressed over the top, then a moisturizer to seal. Keep it away from a vitamin C serum the same night, since copper and ascorbic acid are an unhappy pair in the same layer, and apply any retinoid on a different evening so the peptide gets the skin to itself. It slots into a pregnancy-safe anti-ageing routine and under a heavier cream on dry skin.
Results Timeline
One session leaves skin plump, calm and faintly firmer to the touch from the hydration and the alginate sheet's snug fit, an effect that lasts a day. Any peptide-driven change in fine lines and elasticity is slow: with two or three masks a week, skin may look a little smoother and bouncier at six to eight weeks, and deeper wrinkles will not move. Stopping the routine lets the gain fade over a month or two.
hyaluronic-acidceramidesniacinamidesunscreen
Planning a combo? Check it against what you already use vitamin-cglycolic-acid
See where it fits — layering order & night-splitting
Sample AM Routine
- Cleanser
- Vitamin C serum
- Moisturizer
- Sunscreen SPF 30+
Sample PM Routine
- Cleanser
- Toner
- THIS PRODUCT (2-3x weekly, mask then ampoule)
- Moisturizer
Evidence
Science & Expert Perspective
The Science
Copper tripeptide-1, glycyl-L-histidyl-L-lysine complexed with copper(II), was first isolated from human plasma in the 1970s and has one of the deepest laboratory literatures of any cosmetic peptide. In fibroblast culture it increases synthesis of collagen, elastin, glycosaminoglycans and decorin; in animal and human wound models it accelerates closure and remodelling by recruiting repair cells and regulating matrix metalloproteinases and their inhibitors; and in gene-expression profiling it shifts the activity of a large number of genes involved in tissue repair and oxidative defence. The declared 1,000 ppm, or 0.1 percent, matches the concentration range used in most cosmetic studies. Clinical evidence in intact, photoaged skin is far thinner: a handful of small, mostly sponsored trials over eight to twelve weeks report improved skin density, elasticity and fine-line appearance versus vehicle, and no large independent trial exists. Copper complexes are also chemically reactive, which is the formulation rationale for the sealed ampoule: separating the peptide from the aqueous sheet essence and from any reducing agents prevents loss of the copper ion and preserves activity until application.
Madecassoside and asiaticoside are the principal triterpene glycosides of Centella asiatica, with laboratory and small clinical evidence for reducing inflammatory cytokine release, supporting fibroblast collagen production and improving barrier recovery, and they are the components responsible for most of centella's soothing reputation; using the purified molecules rather than a whole extract allows defined dosing and lower allergen load. Betaine and glycereth-26 are conventional humectants with well-documented water-binding capacity and low irritation.
The sheet's contribution is physical rather than chemical: an alginate fibre sheet, derived from seaweed, holds a high volume of essence, conforms closely to skin and provides the occlusion that raises penetration of small water-soluble molecules during a fifteen-to-twenty-minute wear. Because the sheet essence's ingredient list has not been published in English, its advertised beta-glucan and glacier-water content cannot be verified, and its scientific contribution is assumed to be hydration and soothing consistent with the rest of the range. The interaction caution with vitamin C rests on the known redox chemistry between copper ions and ascorbic acid, which can oxidise the vitamin and destabilise the peptide when combined in one layer.
Dermatologist Perspective
Dermatologists would classify this as a cosmetic peptide mask with a soothing centella component and would treat it as a low-risk adjunct for early photoageing and dehydration rather than a treatment for established wrinkles, which respond to retinoids, resurfacing and procedures rather than to peptides. GHK-Cu would be described as biologically interesting, with a substantial wound-healing literature and limited controlled data in normal skin, and the declared 0.1 percent as a reasonable cosmetic dose; the sealed ampoule would be noted approvingly as the correct way to deliver a copper complex. The formula is free of fragrance, alcohol and common sensitisers and contains no retinoid or acid, so it is acceptable in pregnancy and for most reactive skin, with the caveat that the sheet essence's full composition is unpublished and should be patch-tested by anyone with known contact allergies. Clinicians would advise against combining it with vitamin C in the same application and would set expectations at improved hydration and modest firmness over two months, alongside daily sunscreen, which remains the single most effective anti-ageing measure available.
Guidance
Usage & Recommendations
How to Use
In the evening after cleansing and toner, open one sachet, lift out the sheet with the white backing facing outward, lay it over the face and press from the centre outward, then peel away the backing and smooth the alginate sheet flat. Leave it for fifteen to twenty minutes and remove it before it dries, patting the leftover essence into the skin rather than rinsing. Hold the ampoule upright, flick the tip so the serum settles, snap the top off pointing away from the face, and pour the 1.5 mL into the palm; press it over the face and neck until absorbed, which takes under a minute. Finish with a moisturizer, since the serum is water-thin. Use two or three times a week and no more, keep vitamin C to the morning, and patch-test both the sheet and the ampoule on the jaw first if the skin is very reactive.
Value Assessment
A box of five sells for ¥138 in China, roughly nineteen US dollars, and around CA$26 on YesStyle plus international shipping, with no US retailer to set a dollar price, which puts a session at about four dollars. For a mask with a declared 0.1 percent copper peptide sealed in glass, purified centella actives and a fragrance-free, alcohol-free gel, that is fair to good, and cheaper than most Western copper peptide serums per milligram of peptide, though a serum used daily delivers far more cumulative exposure than a mask used twice a week. A two-month course at the recommended frequency needs four or five boxes, which is the honest cost of any sheet-mask routine. What the price does not buy is a published ingredient list for the sheet essence or any independent evidence that the mask, rather than the molecule, works; Chando's scale and mask expertise make the manufacturing reliable, but the buyer is paying for the ampoule and trusting the sheet.
Who Should Buy
People with normal, dry or combination skin showing early fine lines, dullness or dehydration who want a fragrance-free, alcohol-free firming mask with a real, declared copper peptide dose delivered the careful way, in a sealed ampoule, and who prefer a twice-weekly ritual to a daily serum. It suits pregnancy-safe anti-ageing routines and skin that reacts to retinoids and acids.
Who Should Skip
Anyone who needs the full ingredient list of everything they apply, since the sheet essence's formula is unpublished, and anyone expecting a visible reduction in established wrinkles from a peptide mask. Those who use vitamin C at night should choose a different mask or move the vitamin C to the morning, and rosacea-prone skin should patch-test first.
Ready to try Chando Copper Peptide Ampoule Mask?
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Product Details
Texture
A clear, cool, lightly gelled serum in the ampoule that spreads thin and absorbs in under a minute without tack, applied over a soft, translucent alginate-fibre sheet that carries a thin, watery essence.
Scent
Unfragranced; a faint neutral smell from the essence that is not noticeable in use.
Packaging
Five white-and-periwinkle sachets, each with a 33 mL sheet mask and a 1.5 mL snap-top glass ampoule printed '1000 ppm 蓝铜肽', in a matching paper box of five.
dewylightweightfast-absorbing
What to Expect on First Use
The first session is calm and cool: the thin alginate sheet moulds closely, stays wet for the full twenty minutes and leaves skin plump and slightly firm-feeling, with no warmth or sting on most faces. Snapping the ampoule takes a firm flick and a careful pour, and the gel serum spreads easily over the hydrated skin and vanishes. Any visible firming after one use is hydration; the peptide's contribution is silent for six to eight weeks.
How Long It Lasts
A box of five covers about two weeks at two or three masks a week, or five weeks used weekly.
Best Season
All Year
Background
The Story Behind This Product
Chando's 2-step ampoule masks, launched around 2022, became one of the brand's largest domestic sheet-mask franchises, and the copper peptide version is its anti-wrinkle flagship, riding a boom in Chinese demand for GHK-Cu that saw the category more than double in a year. It carries the Himalayan glacier-water and highland barley beta-glucan positioning of the range and sells for ¥138 per box of five at home, reaching YesStyle in 2025.
About Chando Legacy Brand (20+ years)
Founded in Shanghai in 2001, Chando (自然堂) is one of China's largest domestic skincare brands and a leading seller of sheet masks there, with an R&D centre of about twenty laboratories and a Himalaya research institute since 2017. The 1,000 ppm copper peptide figure on this mask is the brand's own declaration, supported by internal testing that is not published in English; independent evaluation of the product outside China does not exist.
Brand founded: 2001 · Product launched: 2022
Myth vs. Reality
Common Myths
Myth
1,000 ppm copper peptide is a tiny amount that cannot do anything.
Reality
1,000 ppm is 0.1 percent, which is the concentration range used in most of the cosmetic studies on GHK-Cu and above what many Western peptide serums carry. The limiting factor is not the dose but the evidence, which is strong in cell culture and wound models and thin in controlled trials on wrinkles; the ampoule delivers a real amount of a plausibly useful molecule.
Myth
The ingredient list on the retailer page covers the whole mask.
Reality
The sixteen-ingredient list published for this product is the ampoule's: it contains the copper peptide and the centella actives and none of the beta-glucan the sachet advertises, which lives in the sheet essence. The sheet's full formula has not been published in English, so anyone with a specific allergy should treat the mask half as unknown and patch-test.
FAQ
Frequently Asked Questions
How much copper peptide is in the Chando Copper Peptide Ampoule Mask?
Chando declares 1,000 ppm, which is 0.1 percent, of copper tripeptide-1 in the 1.5 mL ampoule, and the peptide appears near the end of the ampoule's sixteen-ingredient list, consistent with that figure. It is the concentration most cosmetic GHK-Cu studies used, sealed in glass to keep the copper complex stable until use.
Can I use the Chando copper peptide mask with vitamin C?
Not in the same session. Copper ions and L-ascorbic acid can react and reduce each other's effectiveness when layered together, so keep a vitamin C serum for the morning and use the mask in the evening, or on alternate days. Niacinamide, hyaluronic acid and ceramides are all comfortable partners.
Is the Chando Copper Peptide Ampoule Mask fragrance-free?
The ampoule is: no parfum, essential oil, alcohol or oil appears on its list, and the centella actives are there to calm rather than scent. The sheet essence's full ingredient list has not been published in English, so very reactive skin should patch-test the sheet on the jaw before a full session.
Does the Chando copper peptide mask really reduce wrinkles?
It can soften fine lines modestly over six to eight weeks of regular use, because GHK-Cu has laboratory evidence for stimulating collagen and elastin and a few small trials showing improved firmness. It will not remove established wrinkles, and much of the immediate effect is hydration from twenty minutes under an alginate sheet.
What order do I use the sheet and ampoule in the Chando Copper Peptide Ampoule Mask?
Sheet first, for fifteen to twenty minutes, then pat in the leftover essence, then snap the ampoule and press its serum over the face. Chando keeps the copper peptide separate so it is applied fresh onto hydrated skin as the final layer, followed by a moisturizer.
How much does the Chando Copper Peptide Ampoule Mask cost?
A box of five is ¥138 in China, about nineteen US dollars, and around CA$26 on YesStyle plus shipping; no US retailer stocks it. That is roughly four dollars a session, mid-range for a two-step sheet and inexpensive for a declared 0.1 percent copper peptide.
Reviews
What Reviewers Tend to Say
Recurring themes our editors read across retailer reviews of this product — summaries in our words, not quotations, and not a substitute for your own patch test.
Skin feels plump, calm and bouncier after each session
Sealed glass ampoule feels like a real serum treatment
No fragrance, no stinging
Alginate sheet clings well and stays wet
Fine-line results are subtle and slow
Ampoule is fiddly and easy to spill
Only five per box for the price
Full sheet-essence ingredients are not published in English
Flagship of Chando's 2-step ampoule mask range, a top domestic sheet-mask franchise