This is the ceiling of The Ordinary's retinol ladder and one of the strongest OTC retinol products available at any price point — let alone under ten dollars. The 1% concentration approaches the territory where published clinical studies have shown measurable increases in procollagen I and III protein expression, making it closer to a pharmaceutical intervention than a cosmetic one.
The final boss of The Ordinary's retinol line — a genuinely potent 1% concentration that demands respect but delivers results close to prescription territory, all for less than ten dollars. Not for the uninitiated, but for those who've earned their retinol tolerance, it's a powerhouse.
The case for it
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 →
The studies behind the evidence row
The case for it
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. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
What would change this: Trial evidence for the active on this concern would move this from a bet to a recommendation.
Same rule for everyone. “Unproven” is the verdict on 1,111 of 45,024 concern verdicts across the catalog; rule R9 decided 1,111 of them. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
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. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
Also listed for Rough Texture and Dullness — the actives here (Squalane, Retinol, Antioxidants, Jojoba Oil) are in our research queue for those concerns; there is no verdict until their evidence rows are written. That is a gap in our table, not a mark against the product.
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
Here's the thing about The Ordinary Retinol 1% in Squalane: it's a test. Not a test of the product — that part is straightforward. Eight ingredients, same as the 0.2% and 0.5%. Same amber dropper. Same squalane base. The test is whether your skin can handle it, and the answer, for a significant number of enthusiastic retinol users who thought they were ready, is a humbling no.
That's not a criticism. It's the reality of a 1% pure retinol concentration, and The Ordinary doesn't pretend otherwise. The product page classifies this as high-strength with medium irritation potential, which is the kind of understatement that only makes sense after you've experienced the first week. The flaking. The redness. The moment where you look in the mirror on day four and briefly consider whether you've made a terrible mistake. This is retinization, it's temporary, and it's the price of admission for what this product can do.
Because what it can do is significant. Published research on 1% topical retinol shows measurable increases in type I and type III procollagen protein expression — the building blocks your skin uses to construct new collagen fibers. A study by Kafi et al., published in the Archives of Dermatology, demonstrated that retinol application to aged skin significantly reduced fine wrinkling and increased glycosaminoglycan expression after 24 weeks. At 1%, you're operating at a concentration where the conversion to retinoic acid is substantial enough to genuinely accelerate the anti-aging machinery, not just nudge it — upregulating collagen while suppressing the matrix metalloproteinases that break existing collagen down.
Two persistent myths are worth correcting before anyone reaches for the bottle. The first is that 1% retinol is essentially prescription tretinoin without the prescription; it isn't. Retinol has to be converted to retinoic acid through several enzymatic steps, shedding potency at each one, so even at 1% it sits well below the lowest tretinoin strength and doesn't replace a dermatologist when one is warranted. The second is that if 0.5% suited you, 1% will simply work faster with no new downsides. Doubling the concentration doesn't double the speed — it substantially raises the irritation ceiling, and plenty of people who tolerate 0.5% nightly hit real peeling and purging at 1%.
The user experience reflects this. People who push through the adjustment period consistently describe a quality of skin change that the lower concentrations don't quite match — a firmness, a bounce, a clarity that goes beyond surface smoothing. Fine lines don't just soften; some users report they visibly diminish. Hyperpigmentation fades faster. Pores appear tighter. Across roughly 5,500 reviews averaging 4.1 stars, the cumulative effect after three months of consistent use is often described as the closest thing to a prescription result they've gotten over the counter — with the recurring one-star exceptions being, predictably, people who ramped up too fast.
But the adjustment period is real, and it demands a support system. The Ordinary's formula gives you retinol, squalane, jojoba, and a small antioxidant stabilizer package — tomato and rosemary extracts plus hydroxymethoxyphenyl decanone and BHT to keep the concentrated retinol from oxidizing. That's it. There are no ceramides to rebuild what the retinol temporarily disrupts, no centella to soothe the inflammation, no hyaluronic acid to replenish the moisture your barrier is losing. You need to bring those things yourself — a rich ceramide moisturizer, a good hydrating serum, and a committed relationship with your sunscreen. Without that infrastructure, 1% retinol can leave your skin worse off than it started. And keep it away from AHAs, BHAs, direct vitamin C, benzoyl peroxide, copper peptides, and other retinoids in the same routine — those belong on separate nights.
The application ritual requires strategy. Most dermatologists and experienced users recommend the sandwich method for the first few weeks: moisturizer, then retinol, then more moisturizer. This buffers the direct contact and gives your skin a fighting chance at adaptation without full-scale revolt. Start with two nights a week. Not three, not every other night — two. And give yourself a full month before increasing frequency. The users who push too fast are the ones writing one-star reviews about retinol burning their face. It goes without saying — but the product is a retinoid, so it is off-limits in pregnancy.
The texture and application experience are identical to the 0.2% and 0.5% — the same lightweight oil, the same quick absorption, the same barely-there finish. The difference only becomes apparent in the hours and days that follow, as the higher retinol concentration makes its presence known through the skin's response. One honest packaging gripe: the dropper is the worst possible vessel for the most oxidation-sensitive formula in the line, and the short three-month shelf life once opened sits awkwardly with a product you can only use twice a week at first.
At $9.90 for 30ml, the value is staggering. Because you're likely using this 2-3 times per week (at least initially), a single bottle can last 4-6 months. That's potentially half a year of high-strength retinol treatment for the price of a mediocre burrito. The entire graduated journey through The Ordinary's retinol line — starting at 0.2%, progressing to 0.5%, arriving at 1% — costs less than $30 total and spans a year or more of progressive retinoid education, all under a brand (launched in 2016 under DECIEM, now owned by the Estée Lauder Companies) built on exactly this kind of transparent, no-embellishment pricing.
This product isn't for most people, and that's not a failing — it's a feature. It's for the skincare committed, the retinol veterans, the people who understand that the adjustment period is a process, not a problem. For them, this is arguably the best value in serious anti-aging skincare that exists anywhere on the market.
The hero actives that drive this product's performance.
| Ingredient | Function | Evidence |
|---|---|---|
| Retinol (1%) | The highest OTC retinol concentration in The Ordinary's lineup, delivering five times the potency of the 0.2% and double the 0.5%. At 1%, retinol conversion to retinoic acid in the skin is substantial enough to produce results approaching prescription-grade retinoids for some users — significantly upregulating collagen I and III production, accelerating epidermal turnover, and suppressing matrix metalloproteinases that degrade existing collagen. | Emerging for Aging |
| Squalane | The anhydrous vehicle becomes critical at this concentration — not just as a stability agent, but as an active counterweight to the significant irritation potential of 1% retinol. Squalane's ability to reinforce the lipid barrier is put to its hardest test here, providing essential emolliency during the more intense retinization period this strength demands. | Not yet assessed |
| Jojoba Seed Oil | Provides a secondary lipid layer that helps maintain barrier function under the stress of high-strength retinol. At 1%, the risk of excessive transepidermal water loss is considerable, and jojoba's sebum-mimetic wax esters offer additional protection against the dryness and flaking that characterize the adjustment period. | Not yet assessed |
| Hydroxymethoxyphenyl Decanone | Protects the concentrated retinol from oxidative degradation. Retinol stability concerns scale with concentration — more retinol in the formula means more molecules susceptible to breakdown, making antioxidant stabilization even more essential for maintaining the declared 1% potency throughout the product's short shelf life. | Not yet assessed |
Ingredient standings describe the active at treatment-level doses and vehicles; this product's own condition grades weigh its actual formula.
Squalane, Caprylic/Capric Triglyceride, Simmondsia Chinensis (Jojoba) Seed Oil, Retinol, Solanum Lycopersicum (Tomato) Fruit Extract, Rosmarinus Officinalis (Rosemary) Leaf Extract, Hydroxymethoxyphenyl Decanone, BHT
treatment
PM
Apply a few drops to clean, dry skin in the evening. At this concentration, always apply over a thin layer of moisturizer (sandwich method) if experiencing irritation, or apply directly to skin when fully acclimated. Follow with a ceramide-rich occlusive moisturizer.
Visible texture improvement within 1-2 weeks. Noticeable reduction in fine lines and hyperpigmentation by weeks 3-6. More dramatic anti-aging results — firmer skin, reduced wrinkle depth, faded sun damage — after 8-12 weeks. Expect a more pronounced adjustment period (peeling, redness, dryness) in the first 2-4 weeks.
At 1% concentration, retinol enters the range where published human studies demonstrate measurable molecular changes in the skin. A landmark study by Kafi et al. (2007), published in the Archives of Dermatology, applied retinol to naturally aged skin in elderly subjects and found significant reductions in fine wrinkling scores after 24 weeks compared to vehicle, along with increased glycosaminoglycan expression and procollagen I immunostaining — direct markers of dermal matrix rebuilding. A separate investigation published in the Journal of Investigative Dermatology showed that topical application of 1% retinol for just 7 days was sufficient to reduce matrix metalloproteinase (MMP) expression while simultaneously increasing fibroblast growth and collagen synthesis, demonstrating that the molecular anti-aging cascade begins rapidly at this concentration.
The conversion pathway from retinol to its active form, retinoic acid, involves sequential oxidation: retinol → retinaldehyde → retinoic acid, with potency loss at each step. Even at 1%, topical retinol produces substantially less retinoic acid in the skin than prescription tretinoin at 0.025%. However, a 2015 comparative study published in the British Journal of Dermatology found that retinol induced similar changes in skin histology and gene expression as retinoic acid, albeit with smaller magnitude — suggesting that the biological pathways activated are the same, just less intensely stimulated.
The squalane vehicle plays a particularly important role at this concentration. Higher retinol levels mean more molecules susceptible to oxidative degradation, and the anhydrous environment eliminates the primary aqueous degradation pathway. Additionally, squalane's properties as a penetration enhancer for lipophilic compounds may improve the bioavailability of this high-dose retinol at the dermal-epidermal junction where collagen remodeling occurs.
Dermatologists view 1% retinol as the upper limit of what OTC retinoid products can deliver before prescription retinoids become the next logical step. Dermatologists emphasize that this concentration is not appropriate as a starting point — even for patients with oily, resilient skin — and should only be used after documented tolerance at lower strengths. The lack of supporting ingredients in this formula means dermatologists typically recommend pairing it with a prescription-grade moisturizer or a ceramide barrier cream to prevent the excessive transepidermal water loss this strength can cause. Dermatologists also note that patients using 1% retinol require the same photoprotection diligence as those on prescription retinoids — daily SPF 50 with consistent reapplication is considered essential, not optional.
Begin with 2 nights per week only, even if you've been using the 0.5% nightly. Apply 3-4 drops to clean, dry skin in the evening. For the first month, use the sandwich method: apply a thin layer of moisturizer first, then the retinol drops, then a second layer of ceramide-rich moisturizer. Avoid the eye area, lips, nostrils, and any broken or irritated skin. After 4-6 weeks with no persistent irritation, gradually increase to 3-4 nights per week. Nightly use should only be attempted after at least 2 months of successful tolerance building. Apply SPF 50 every morning without exception. Refrigerate after opening.
At $9.90 for 30ml, this is the most cost-effective high-strength retinol product on the market by a significant margin. Comparable 1% retinol products from other brands range from $30-$80, and prescription retinoids involve office visit costs on top of the medication. Given the 2-3 times weekly starting frequency, a single bottle can last 4-6 months, bringing the monthly cost to approximately $1.65-$2.50. The only value consideration is the strict 3-month post-opening shelf life — but even at full waste, the financial loss is under ten dollars. For the results this concentration can deliver, the price-to-performance ratio is unmatched.
Experienced retinol users who have tolerated 0.5% retinol consistently for at least 2-3 months and want to maximize their anti-aging results without a prescription. Those seeking the closest OTC approximation to prescription retinoid results at a fraction of the cost.
Retinol beginners — start at 0.2% regardless of your age or eagerness. Anyone with sensitive, dry, or eczema-prone skin. People currently experiencing any form of skin barrier disruption. Those unwilling to commit to daily sunscreen and a robust moisturizing routine. Pregnant or breastfeeding individuals.
Ready to try The Ordinary Retinol 1% in Squalane?
Buy at Amazon ♥Lightweight golden oil identical in feel to the 0.2% and 0.5% versions. Spreads easily and absorbs within a few minutes, though the skin response at this concentration can make the texture feel different as retinization sets in.
Unscented. The same barely-perceptible oil note as the rest of the retinol line, disappearing on contact with skin.
Same amber glass dropper bottle as the 0.2% and 0.5% versions. At 1% retinol, the stability concerns are most acute — the dropper's air exposure with each use is the biggest packaging limitation in the lineup.
Expect the most pronounced adjustment period in the line. Tingling or mild burning on first application is common. Visible peeling, flaking, and redness typically begin within days 3-7 and can persist for 2-4 weeks. Some users experience a purging phase where existing congestion surfaces as breakouts before clearing. This is normal but intense — if you haven't built tolerance with 0.5%, this product can be overwhelming.
4-6 months with 2-3 times weekly application (typical starting frequency), or 3 months with nightly use once fully acclimated
fall winter
Positioned as the final destination in The Ordinary's graduated retinol system, the 1% was always the product for users who'd earned their stripes. It represents The Ordinary's philosophy taken to its logical extreme — the highest effective OTC retinol concentration, in the simplest possible formula, at the lowest possible price, with zero marketing embellishment about what the adjustment period actually feels like.
The Ordinary launched in 2016 under DECIEM (now wholly owned by Estée Lauder Companies as of 2024) and quickly became the most recognized name in affordable, no-nonsense skincare. The brand's transparent approach to ingredient concentrations and pricing has earned it a massive following and widespread dermatologist acknowledgment, though its products rely on well-studied ingredients rather than proprietary clinical trials.
1% retinol is basically the same as prescription tretinoin, so you don't need a dermatologist.
While 1% retinol is potent, it's fundamentally different from tretinoin. Retinol must be converted to retinoic acid through multiple enzymatic steps in the skin, losing potency at each conversion. Even at 1%, this product is significantly less potent than the lowest prescription tretinoin (0.025%). It can produce impressive results, but it doesn't replace a prescription when one is warranted.
If the 0.5% worked well for you, the 1% will just work faster with no extra side effects.
Doubling the retinol concentration doesn't simply double the speed of results — it substantially increases the irritation potential. Many users who tolerate 0.5% nightly experience significant peeling, redness, and purging when stepping up to 1%. The adjustment period is real and should be approached with respect.
For most users, nightly use is the goal but not the starting point. Begin with 2-3 applications per week, even if you've been using the 0.5% nightly. Gradually increase frequency over 4-6 weeks as your skin acclimates. Some users with resilient skin can eventually use it nightly, while others find 3-4 nights per week is their sustainable maximum at this concentration.
Despite the high concentration, 1% retinol is substantially less potent than even the lowest prescription tretinoin (0.025%). Retinol requires multiple enzymatic conversion steps in the skin to become active retinoic acid, with significant potency loss at each step. However, 1% retinol can still produce meaningful anti-aging results and may be preferred by those who find tretinoin too irritating or who don't have prescription access.
Yes — purging is common and expected at this concentration. The accelerated cell turnover pushes existing congestion (clogged pores, microcomedones) to the surface faster than it would naturally emerge. Purging typically occurs in areas where you normally break out and resolves within 4-6 weeks. If breakouts appear in unusual locations or worsen after 6 weeks, discontinue use and consult a dermatologist.
No — at 1% concentration, retinol should not be applied to the delicate periorbital area. The skin around the eyes is significantly thinner and more prone to irritation. If you want retinol benefits for crow's feet or under-eye concerns, use the 0.2% version in that area or choose a dedicated retinol eye cream formulated for the eye contour.
You can, but extra caution is warranted. Retinol increases photosensitivity, and at 1% this effect is more pronounced. If you use this product year-round, diligent daily SPF 50 application and reapplication is essential. Many dermatologists suggest stepping down to 0.5% during peak summer months or limiting use to 2 nights per week with enhanced sun protection.
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.
Dramatic improvement in skin texture and tone with consistent use
Remarkably affordable for a high-strength retinol
Visible results faster than lower concentrations
Plumping effect noticeable within first few weeks
Simple formula with no unnecessary additives
Significant irritation, peeling, and redness during the adjustment period
Can trigger purging that lasts several weeks
Too strong for many users even after building tolerance with lower strengths
Oily texture combined with peeling skin creates an uncomfortable combination
Three-month shelf life is stressful with a product you can only use 2-3 times per week initially
Verified answers from our questions library — the nuance a product page cannot carry.
