SKIN1004 Tea-Trica Relaxing Mask sheet mask sachet — tea tree and centella acne sheet mask
Strong choice for Acne
What Makes This Different

Most acne sheet masks are essentially niacinamide water with a tea tree extract for marketing. This one uses tea tree leaf water as the entire essence base (47,000 ppm), layers the full centella triterpene panel on top, and adds a leave-on salicylic acid dose — a sheet format that genuinely carries treatment-tier actives.

SKIN1004

SKIN1004 Tea-Trica Relaxing Mask Review

Breakout SOS Sheet Mask
mask sheet-mask k beauty Paraben Free Cruelty Free Vegan

A treatment-grade tea tree sheet mask that uses Melaleuca leaf water as the entire essence base rather than a token extract. With leave-on salicylic acid, the full centella panel, and niacinamide, it's a smarter acne sheet than most on the market.

$4.00
24ml per sheet · other sizes available
4.3 ★★★★★
280 reviews
Made in South Korea Launched 2023 All-year use PAO: 24 months
Buy at Amazon ♥
Run it through our tools Clashes with my routine? Pregnancy-safe? Find a cheaper dupe Patch-test it first

Note: This sheet mask launched in 2023 and scoring relies on ingredient analysis plus SKIN1004's established centella formulation history. We'll revisit as more real-world data accumulates.

Verdicts

How well it fits each concern

Verdict by concern tap a concern for the case

Strong choicefor AcneSalicylic Acid is an approved or monograph active for acne; this sheet mask carries it, though the concentration is not declared.Moderate evidenceStandard tolerability10 reviews collected

The case for it

  1. Salicylic Acid is a first-line active — approved, monograph-listed or named in current guidelines — for this concern.
  2. It is plausibly present at a working level, though the concentration is not declared.
  3. The formula carries no trigger this concern is sensitive to, with the cautions noted.

Cautions: fragrance.

What would change this: A declared concentration would move this to a firmer reading of the dose.

Same rule for everyone. “Strong choice” is the verdict on 1,459 of 45,024 concern verdicts across the catalog; rule R3 decided 567 of them. Unchanged since September 5, 2026, engine 5.1.1.

Brand or formulator? Disclose a concentration or correct a fact →

Show the work
Rule
R3 — Undeclared but plausibly dosed (top-third INCI position, or a potent sub-1% active) — the verdict stands, and the sentence says what disclosure would add. A declared figure below range would have been sub-threshold. · the full register
Carrying active
Salicylic Acid
Standing
first line — a regulator recognises it for this use; trials support it · per § 333.310 Acne active ingredients. (U.S. Food and Drug Administration — 21 CFR Part 333 Subpart D (Topical Acne Drug Products), Code of Federal Regulations via GovInfo), opened July 27, 2026
Form
plausible — studied range 0.5–2%, from the OTC monograph or label; judge it after ~6 weeks
Tolerability
standard — fragrance load
Row checked
against its sources on July 27, 2026 (evidence table ev-2026.09-r228)

The studies behind the evidence row

All acne products →
Promisingfor Excess OilinessNiacinamide has trial-level evidence for excess oiliness but no guideline or regulatory standing yet — promising, short of a recommendation; the other actives here are not yet assessed for it.Moderate evidenceStandard tolerability10 reviews collected

The case for it

  1. Niacinamide has trial-level evidence for this concern but no guideline or regulatory standing yet.
  2. It is plausibly present at a working level, though the concentration is not declared.
  3. The formula carries no trigger this concern is sensitive to, with the cautions noted.

What would change this: A declared concentration would move this to a firmer reading of the dose.

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. Unchanged since September 5, 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
Niacinamide
Standing
plausible — trials support it
Form
plausible — studied range 2%, from the trials on the row; needs leave-on contact; judge it after ~8 weeks
Tolerability
standard
Row checked
against its sources on July 17, 2026 (evidence table ev-2026.09-r228)

The studies behind the evidence row

All excess oiliness products →
Strong choicefor BlackheadsSalicylic Acid is an approved or monograph active for blackheads; this sheet mask carries it, though the concentration is not declared.Moderate evidenceStandard tolerability10 reviews collected

The case for it

  1. Salicylic Acid is a first-line active — approved, monograph-listed or named in current guidelines — for this concern.
  2. It is plausibly present at a working level, though the concentration is not declared.
  3. The formula carries no trigger this concern is sensitive to, with the cautions noted.

What would change this: A declared concentration would move this to a firmer reading of the dose.

Same rule for everyone. “Strong choice” is the verdict on 1,459 of 45,024 concern verdicts across the catalog; rule R3 decided 567 of them. Unchanged since September 5, 2026, engine 5.1.1.

Brand or formulator? Disclose a concentration or correct a fact →

Show the work
Rule
R3 — Undeclared but plausibly dosed (top-third INCI position, or a potent sub-1% active) — the verdict stands, and the sentence says what disclosure would add. A declared figure below range would have been sub-threshold. · the full register
Carrying active
Salicylic Acid
Standing
first line — a regulator recognises it for this use; trials support it · per 21 CFR § 333.350 - Labeling of acne drug products. (US Code of Federal Regulations (Legal Information Institute, Cornell Law School)), opened July 27, 2026
Form
plausible — studied range 0.5–2%, from the OTC monograph or label; judge it after ~6 weeks
Tolerability
standard
Row checked
against its sources on July 27, 2026 (evidence table ev-2026.09-r228)

The studies behind the evidence row

All blackheads products →
Promisingfor Large PoresNiacinamide has trial-level evidence for large pores but no guideline or regulatory standing yet — promising, short of a recommendation; the other actives here are not yet assessed for it.Moderate evidenceStandard tolerability10 reviews collected

The case for it

  1. Niacinamide has trial-level evidence for this concern but no guideline or regulatory standing yet.
  2. It is plausibly present at a working level, though the concentration is not declared.
  3. The formula carries no trigger this concern is sensitive to, with the cautions noted.

What would change this: A declared concentration would move this to a firmer reading of the dose.

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. Unchanged since September 5, 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
Niacinamide
Standing
plausible — trials support it
Form
plausible — studied range 4%, from the trials on the row; needs leave-on contact; judge it after ~8 weeks
Tolerability
standard
Row checked
against its sources on July 17, 2026 (evidence table ev-2026.09-r228)

The studies behind the evidence row

All large pores products →
Good choicefor Rough TextureSalicylic Acid is a reference standard by mechanism for rough texture; this sheet mask carries it high in the ingredient list.Moderate evidenceStandard tolerability10 reviews collected

The case for it

  1. Salicylic Acid has trial-supported standing for this concern.
  2. It is present at an effective concentration, declared or high in the ingredient list.
  3. The formula carries no trigger this concern is sensitive to, with the cautions noted.

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. Unchanged since September 5, 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
Salicylic Acid
Standing
supported — its mechanism is established
Form
adequate — studied range 0.5–2%, from the trials on the row; needs leave-on contact; judge it after ~6 weeks
Tolerability
standard
Row checked
against its sources on July 17, 2026 (evidence table ev-2026.09-r228)

The studies behind the evidence row

  • International Cosmetic Ingredient Dictionary and Handbook — declared function — Personal Care Products Council
  • United States Pharmacopeia / National Formulary — excipient monograph — USP-NF
All rough texture products →

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).

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

  • ✓ Tea tree leaf water as the essence base, not just a trace extract
  • ✓ Leave-on salicylic acid dose uses the sheet's occlusive contact effectively
  • ✓ Full centella triterpene panel buffers the aggressive actives
  • ✓ Niacinamide and zinc PCA add sebum regulation beyond antimicrobial action
  • ✓ Fragrance-free with a subtle rather than medicinal tea tree note

Cons

  • ✗ Not for sensitive, rosacea, or eczema-prone skin
  • ✗ Not pregnancy safe due to leave-on salicylic acid
  • ✗ Not strictly fungal acne safe due to PEG ingredient
  • ✗ Single-use format costs more per ml than the Purifying Toner
  • ✗ Not a replacement for a dedicated acne treatment
Review

Full Review

Most 'acne sheet masks' are hydrating sheet masks with a tea tree extract dropped somewhere in the middle of the INCI, a label redesign, and an implicit promise they'll help with breakouts. The reality is that you usually get a mildly antimicrobial essence diluted into oblivion, a short contact time, and no meaningful difference from any other calming sheet. The Tea-Trica Relaxing Mask is interesting because it refuses to play that particular game. SKIN1004 didn't just add tea tree to an existing sheet mask base — they replaced the base. The essence in this sheet is tea tree leaf water first, at a claimed 47,000 ppm, which means the entire vehicle carrying the actives is already doing antimicrobial work before any other ingredient joins the party. That's not a common formulation choice, and it's what justifies the mask's existence as a treatment step rather than a mood-and-hydration product.

The tea tree evidence base is worth understanding before you evaluate whether this approach actually helps. Multiple published clinical trials have examined Melaleuca alternifolia for its effects on mild-to-moderate inflammatory acne, with results showing antimicrobial activity against Cutibacterium acnes and meaningful reductions in lesion counts over 4-8 weeks of consistent use. Most of that research used 5% tea tree oil gel, which is higher than what you'd tolerate in a leave-on sheet, but tea tree water and leaf extract forms carry the same antimicrobial compounds at much lower concentrations and don't bring the essential oil's irritation risk. Using the leaf water as the base — rather than an essential oil drop — is how you take advantage of the evidence without the collateral damage.

On top of that base, the centella triterpene layer is doing exactly the same job it does across the rest of the SKIN1004 line. All four triterpenes — madecassoside, asiaticoside, asiatic acid, and madecassic acid — show up in the INCI, and they're here specifically to buffer the tea tree and the leave-on salicylic acid. That leave-on BHA dose, by the way, is the other thing that separates this mask from the average calming sheet. Salicylic acid at treatment-level exposure during a fifteen-to-twenty-minute dwell time is genuinely different from salicylic acid in a cleanser that rinses off in ten seconds. The sheet format keeps the BHA in contact with the skin long enough for it to penetrate sebum-filled follicles and support pore turnover, which is one of the few cases where sheet mask occlusion meaningfully changes an active's performance.

The supporting cast rounds out what's already a pretty complete acne-targeting formula. Niacinamide sits high enough on the INCI to be doing real work — sebum regulation, post-inflammatory mark support, barrier backup. Zinc PCA adds another sebum-control input. Panthenol, allantoin, and two weights of hyaluronic acid provide the hydration layer that keeps the mask from feeling stripping. The overall construction is unusually thoughtful for a sheet mask.

On skin, the sheet is lightweight and fits most faces reasonably well. The essence is cool and immediately calming on contact, and any sting from the salicylic acid is minimal — the centella buffering and the leave-on format handle it. Fifteen to twenty minutes is the right window; any longer and the sheet starts drying out, which reverses the benefit. After removal, there's plenty of essence left to pat into the neck and jawline, and the finish is clean and matte rather than dewy.

Honest limitations: this is not a sensitive-skin product. The tea tree plus salicylic acid combination is too much for reactive skin, and anyone with rosacea or eczema should skip it in favor of the Probio-Cica Nourishing Mask from the same brand, which uses the same cica philosophy but without the aggressive actives. It's also not pregnancy-safe because of the leave-on BHA, and it's not strictly fungal acne safe due to the PEG-40 hydrogenated castor oil in the formula — though tea tree is often considered helpful against malassezia, so the practical answer for fungal-acne users is mixed. And as with anything in the Tea-Trica line, this isn't a replacement for a dedicated treatment-strength acne product. It's a weekly SOS step that slots into an existing routine and reinforces it during active breakouts.

At around $4 per sheet or roughly $18-20 for a pack of 5, the value is fair but not spectacular. Sheet masks always cost more per milliliter than leave-on products, and the Tea-Trica Purifying Toner is a better daily-use value if you're picking one. But the mask does something the toner can't: it holds a treatment-level active stack on the skin for twenty minutes of occlusive contact, and during a breakout week that kind of concentrated exposure is genuinely useful. For acne-prone skin already using the Tea-Trica line, this is the natural weekly add-on. For anyone new to the brand, buy the cream and toner first, and reach for the mask when a breakout demands extra attention.

Formula

Key Ingredients

The hero actives that drive this product's performance.

IngredientFunctionEvidence
Tea Tree Leaf Water (47,000 ppm) Rather than plain aqua with a trace of tea tree, this mask uses tea tree leaf water as the essence base — a genuinely high-tea-tree format that delivers antimicrobial activity during the mask's dwell time without the sting of essential oil. Not yet assessed
Centella Asiatica (Full Triterpene Panel) The calming counterweight to the tea tree and salicylic acid — essential for keeping a leave-on sheet with this level of actives tolerable on already-reactive acne-prone skin. Not yet assessed
Salicylic Acid A small BHA leave-on dose that works across the 15-20 minute dwell time to support pore turnover — more effective in a sheet format than in a rinse-off mask. Established mechanism for Rough Texture · established mechanism
Niacinamide Sits high on the INCI to buffer the BHA and tea tree while supporting sebum regulation and post-mark fading — the quiet multitasker of the formula. Limited for Acne
Zinc PCA Reinforces the sebum-control side during the extended sheet contact — something a short toner pat doesn't have time to deliver. Limited for Acne
Full INCI List · pH 5

Melaleuca Alternifolia (Tea Tree) Leaf Water, Centella Asiatica Leaf Water, Propanediol, Glycerin, Niacinamide, 1,2-Hexanediol, Pentylene Glycol, Salicylic Acid, Melaleuca Alternifolia (Tea Tree) Leaf Extract, Centella Asiatica Extract, Madecassoside, Asiaticoside, Asiatic Acid, Madecassic Acid, Panthenol, Sodium Hyaluronate, Hydrolyzed Hyaluronic Acid, Allantoin, Zinc PCA, Houttuynia Cordata Extract, Portulaca Oleracea Extract, Butylene Glycol, PEG-40 Hydrogenated Castor Oil, Betaine, Arginine, Xanthan Gum, Tromethamine, Carbomer, Ethylhexylglycerin, Disodium EDTA

Safety & Formulation Facts
✗ Not Pregnancy Safe ✓ Fragrance Free✓ Alcohol Free✓ Oil Free✓ Silicone Free✓ Paraben Free✓ Sulfate Free✓ Cruelty Free✓ Vegan✗ Fungal Acne Safe
Potential Irritants
Salicylic Acid
Compatibility

Skin Match

Best For
Works For
Not Ideal For
Routine Step

treatment

Time of Day

AM & PM

Layering Tips

Apply to clean skin after toner. Leave 15-20 minutes. Pat in remaining essence and follow with moisturizer.

Results Timeline

Immediate calming. Regular use (1-2x weekly) over 4-6 weeks visibly improves active breakouts and texture.

Pairs Well With
niacinamidetea-tree-oilsalicylic-acidcentella-asiatica
Planning a combo? Check it against what you already use
Sample PM Routine
  1. Oil cleanser
  2. Gentle cleanser
  3. Tea-Trica Purifying Toner
  4. THIS PRODUCT (1-2x weekly)
  5. Tea-Trica B5 Cream
Evidence

Science & Expert Perspective

The Science

Tea tree oil (Melaleuca alternifolia) has a substantial evidence base for antimicrobial activity against acne-causing bacteria, with published clinical trials showing results comparable to low-dose benzoyl peroxide for mild-to-moderate inflammatory acne, though with slower onset. Tea tree leaf water and leaf extract carry the same antimicrobial terpenes at lower concentrations and with significantly less irritation risk than the essential oil form, making them well-suited to leave-on sheet mask formats. Salicylic acid has decades of published evidence supporting its comedolytic and anti-inflammatory activity — it penetrates sebum-filled follicles thanks to its lipophilic character and supports corneocyte turnover. The 15-20 minute occlusive contact of a sheet mask is meaningfully different from the brief contact of a cleanser, giving BHA activity time to work on pore contents. The centella triterpene panel — madecassoside, asiaticoside, asiatic acid, and madecassic acid — has documented anti-inflammatory activity that buffers the effects of both tea tree and salicylic acid. Niacinamide provides sebum regulation, post-inflammatory mark support, and barrier function at 2-5% concentrations across published research. The combined mechanism of antimicrobial activity, keratolytic exfoliation, sebum regulation, and anti-inflammatory support is a coherent multi-pathway approach to managing active breakouts during a sheet mask treatment session.

Dermatologist Perspective

Dermatologists generally view sheet masks as adjunct products rather than primary treatments, but practicing dermatologists frequently agree that short-contact occlusive formats can meaningfully enhance the delivery of water-soluble actives like salicylic acid and niacinamide. This type of treatment mask is commonly suggested as an occasional support step during active breakouts for patients already using daily acne routines, rather than as a standalone treatment. Patients with sensitive skin or rosacea are typically advised to avoid tea tree plus BHA combinations, even in short-contact formats.

Guidance

Usage & Recommendations

How to Use

Cleanse and tone first. Remove the sheet from the sachet, unfold, and apply to clean skin. Adjust for fit around the eyes, nose, and mouth. Leave on 15-20 minutes — no longer, or the sheet will start pulling moisture from skin. Remove and pat the leftover essence into the skin, neck, and chest. Follow with moisturizer. Use 1-2 times weekly, or up to every other day during active breakouts. Do not use on broken or severely compromised skin.

Value Assessment

At around $4 per sheet or roughly $18-20 for a pack of 5, this mask sits in the middle of the K-beauty treatment sheet category. It's more expensive per milliliter than leave-on daily products from the same brand, which is inherent to the sheet format, but it's cheaper than most clinical-brand acne masks and carries a denser ingredient list. For existing Tea-Trica users, it's a reasonable SOS add-on. For daily maintenance, the Purifying Toner offers better cost-per-use.

Who Should Buy

Oily or combination skin dealing with mild-to-moderate active breakouts, especially users already in the Tea-Trica line looking for an intensive weekly treatment. Also a good fit for anyone who wants to try treatment actives in a lower-commitment sheet format before adding a daily product.

Who Should Skip

Sensitive skin, rosacea, or eczema. Skip during pregnancy. If your skin is severely dry or barrier-compromised, use the Probio-Cica Nourishing Mask instead — it's built for the opposite use case.

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Details

Product Details

Texture

Watery essence on a lightweight sheet

Scent

Fragrance-free, with a faint tea tree herbal note

Packaging

Individual foil sachet — sold as singles or in packs of 5

Finish
lightweightfast-absorbingnatural
What to Expect on First Use

Cool and calming on contact. A barely noticeable tingle from the salicylic acid fades within the first minute. Skin feels visibly calmer after removal.

How Long It Lasts

Single-use. A pack of 5 covers 2-3 weeks at typical use.

Period After Opening

24 months

Opened yours? Track the toss-by date
Best Season

All Year

Background

The Story Behind This Product

SKIN1004 added the Relaxing Mask to the Tea-Trica line so breakout-prone customers could have an SOS weekly treatment in the same sheet format already popular across K-beauty. The sheet's long contact time is what makes carrying a leave-on BHA worth the effort.

About SKIN1004 Established Brand (5–20 years)

SKIN1004 launched in 2016 around Madagascar centella. The Tea-Trica Relaxing Mask brings the brand's acne-focused Tea-Trica line into a high-contact sheet mask format with a notably high tea tree concentration.

Brand founded: 2016 · Product launched: 2023
Myth vs. Reality

Common Myths

Myth

Tea tree sheet masks are too irritating to use during a breakout

Reality

The irritation risk comes mostly from tea tree essential oil at high concentrations, not from tea tree water or leaf extract. This mask uses the water and extract forms during a short 15-20 minute dwell time, which keeps the antimicrobial benefit without the sting.

FAQ

Frequently Asked Questions

How often should I use this mask?

Once or twice a week for maintenance, or up to every other day during active breakouts. Daily use is not recommended because of the leave-on salicylic acid dose.

How is this different from the Probio-Cica Nourishing Mask?

The Probio-Cica version is a calming, barrier-repair sheet mask with postbiotic ferments — built for sensitive, reactive skin. The Tea-Trica Relaxing Mask is targeted at acne-prone skin with tea tree, salicylic acid, and zinc PCA. Different jobs, different routines.

Is the Tea-Trica Relaxing Mask pregnancy safe?

No — it contains leave-on salicylic acid. Most dermatologists recommend avoiding leave-on BHAs during pregnancy. Use the Probio-Cica Nourishing Mask instead.

Is Tea-Trica Relaxing Mask fungal-acne (malassezia) safe?

Not strictly. It contains PEG-40 hydrogenated castor oil, which some fungal acne routines exclude. Tea tree is often considered helpful against malassezia, but the overall formula isn't on standard safe lists.

Can I use it with other Tea-Trica products?

Yes — the mask slots naturally into the Tea-Trica routine. Use it 1-2x weekly at night after the Purifying Toner, then follow with the Tea-Trica B5 Cream as usual.

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.

Common Praise

Visibly calms active breakouts

Tea tree delivered without sting

Essence doesn't dry out mid-use

Fragrance-free

Common Complaints

Single-use format costs more per ml than toners

Too strong for sensitive skin

Appears In
Masks for Acne: What the Verdicts SayMasks for Blackheads: What the Verdicts SayMasks for Large Pores: What the Verdicts SayBest Salicylic Acid for Acne
Related Conditions
acneexcess oilinessblackheadslarge pores
Related Ingredients
tea treesalicylic acidcentella asiaticaniacinamidezinc