One conversion step closer to the active form than retinol, sold at a tenth of the percentage, and far less forgiving of a bad start.
By Sawyer V. · Published September 10, 2026 · Last updated September 10, 2026
The short answer
Retinal, or retinaldehyde, is one conversion step from retinoic acid, so it acts faster than retinol and is sold at 0.05% to 0.2% rather than 0.3% to 1%. It suits people who already tolerate retinol and want quicker results without a prescription. It is unstable, so opaque, airless packaging matters more than it does for almost any other active.
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How We Picked
Few brands publish a retinal percentage, so a disclosed number was the threshold. We then ranked on packaging — retinal degrades in light and air faster than retinol — and on whether the format offers a sensible step up rather than a jump. We have not tested any of these.
Everyone in this category says they tested twenty of these. We have not tested any, and we say so. What we did instead: compiled the published concentrations and ingredient lists, checked each claim against what the formula can actually support, and wrote down who each product is wrong for. The full method is published so you can check it.
Quick Picks
The short answer, by buyer. Select any row for the full write-up.
#
Product
Best for
Where to buy
1
No product photograph available for Avene RetrinAL 0.1 Intensive Cream
Avene RetrinAL 0.1 Intensive CreamIt publishes its number, puts it at the top of the everyday range, and delivers it in a cream that supports the barrier while it works — the least ambiguous option for someone stepping up from retinol..
No product photograph available for Medik8 Crystal Retinal
Medik8 Crystal RetinalThe strength ladder is the point: you can start low and move up without changing the base formula, which removes a variable when you are trying to judge what your skin tolerates..
No product photograph available for Geek & Gorgeous A-Game 5 Retinal Serum
Geek & Gorgeous A-Game 5 Retinal Serum0.05% is the sensible first retinal, and this is one of the few products that publishes it at a price that makes months of consistent use realistic..
No product photograph available for The Ordinary Retinal 0.2% Emulsion
The Ordinary Retinal 0.2% EmulsionFor someone already comfortable on 0.1% retinal, it is a published, affordable next step — which is otherwise hard to find..
No product photograph available for Naturium Retinaldehyde Cream Serum 0.05%
Naturium Retinaldehyde Cream Serum 0.05%A published entry-level retinal in a slightly richer base, which suits people moving over from a retinol cream rather than a serum..
#ad — buying through these links earns us a commission at no cost to you. No price is shown because we do not run a live price feed, and a remembered number would be a guess.
Why Retinal, and Who It Is For
Skin converts retinol to retinal, and retinal to retinoic acid — the molecule that actually does the work. Starting one step further along means more of the dose reaches the active form, which is why retinal works at percentages that look ten times smaller than retinol's. The chain is explained on the retinal monograph and compared directly in retinol vs. retinal.
Retinal also has a mild antibacterial effect that retinol lacks, which makes it a reasonable choice for adult acne alongside aging concerns.
It is not a first retinoid. The honest sequence is a low-strength retinol for several months, then retinal if you want more. Starting at retinal skips the most forgiving rung of the ladder. If your skin is reactive, the retinol for sensitive skin roundup is the right page instead.
Reading Retinal Strengths
Published retinal
Roughly comparable to
Who it suits
0.01% to 0.03%
A low-strength retinol
Stepping over from retinol cautiously
0.05%
A mid-to-high retinol
The sensible first retinal
0.1%
The top of the usual range
Experienced, tolerant users
0.2%
Above most over-the-counter options
Only after 0.1% is comfortable
The comparisons are approximate — conversion varies between people — but the direction is reliable. Moving from a 1% retinol straight to 0.2% retinal is a step up, not a sideways move.
No product photoNo product photograph available for Avene RetrinAL 0.1 Intensive Cream
Premium Beauty listing
1 — A published 0.1% in a buffering cream
Avene RetrinAL 0.1 Intensive Cream
What’s in it
0.1% retinaldehyde — the concentration is in the product name
Cream base that cushions the active
Opaque tube
It publishes its number, puts it at the top of the everyday range, and delivers it in a cream that supports the barrier while it works — the least ambiguous option for someone stepping up from retinol.
Who it’s not for
A first retinoid, or anyone not yet comfortable on a mid-strength retinol. 0.1% retinal is a meaningful dose.
No product photoNo product photograph available for Medik8 Crystal Retinal
Premium Beauty listing
2 — A numbered ladder of strengths in one formula
Medik8 Crystal Retinal
What’s in it
Sold in numbered strengths so you can step up within one formula
Retinaldehyde as the active
Airless packaging
The strength ladder is the point: you can start low and move up without changing the base formula, which removes a variable when you are trying to judge what your skin tolerates.
Who it’s not for
Anyone who wants one product and no decisions. Choosing the wrong starting number is easy — begin at the lowest unless you already use a strong retinol.
Retinal is marketed as the smarter retinoid, and it is a genuinely good one. That marketing tempts people to start here. The adjustment period with retinoids — dryness, flaking, a week or two of sensitivity — is gentlest at the bottom of the ladder, and retinal removes that bottom rung. Starting on 0.1% or 0.2% retinal with no retinoid history is the most reliable way to have a bad fortnight, decide retinoids are not for you, and abandon the most evidence-backed anti-aging category in skincare. Spend a few months on a low retinol first. Retinal will still be there.
Frequently Asked Questions
At the same percentage, yes — it is one conversion step closer to retinoic acid. That is why it is sold at 0.05% to 0.2% rather than 0.3% to 1%.
0.05%, or the lowest step of a numbered range, two nights a week — and only after you already tolerate a retinol.
Retinal is yellow-orange and fades as it oxidizes. A product that has gone pale has lost potency.
Eventually, often yes. Build up from two nights a week and increase only while your skin stays comfortable.
Yes, at different times of day — vitamin C in the morning, retinal at night.
By Sawyer V.. An enthusiast who’s genuinely into this: I read the manufacturer documentation, compile the published percentages, and do the arithmetic. No lab coat.
What I don’t do: test products, accept free product, or accept payment for placement. I hold no clinical credential and don’t claim one. How we pick.
Published September 10, 2026 · Last updated September 10, 2026
