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Actives

Retinol

also known as Vitamin A, encapsulated retinol

The most-studied over-the-counter retinoid — and not the same molecule as retinal, which sits one conversion step closer to active.

Anti-agingAcne support

What it is

Pure vitamin A, and the retinoid almost every over-the-counter anti-ageing claim has been built on since the 1980s. Skin has to convert it in two steps — retinol → retinal → retinoic acid — before it does anything at all.

What it actually does

Retinoids are associated with faster cell turnover, increased collagen production, and pores that shed dead cells more evenly. Retinol has by far the deepest clinical file of any OTC retinoid, but it is roughly ten times weaker than prescription tretinoin, and one comparison put 0.25% retinol in the same range as 0.025% tretinoin. That two-step conversion is inefficient and varies a lot between people, which is why two people on the same 0.5% serum can get very different results. Formulas usually land between 0.1% and 1%: 0.1% is the well-tolerated, well-evidenced floor, and 1% works harder but irritates more.

Why K-beauty uses it

Two things worth knowing about Korean retinol labels. First, an "encapsulated retinol 1%" claim usually refers to the raw material, and that material may itself be only 1–3% actual retinol — so the number on the front of the box is often far larger than the dose reaching your face. Second, since November 2025 the EU has capped retinol at 0.3% retinol-equivalent in leave-on products (0.05% in body lotion), and brands selling into both markets have been quietly reformulating downward.

Best for

  • Fine lines
  • Texture
  • Post-acne marks

Not ideal for

  • Pregnancy
  • Compromised barrier
  • Redness-prone skin in a flare

Pairs well with

Use with care

Not "avoid at all costs" — most K-beauty routines get away with these combos by splitting AM/PM or alternating nights. The caution is about how you layer, not whether you use them.

Routine placement

Where it lives
Serum · Moisturizer
AM/PM
PM
Frequency
Every 3rd night → nightly

Pregnancy note: Avoid during pregnancy and breastfeeding. Bakuchiol is the usual stand-in.

How to use it

Evening only, on dry skin after cleansing, a pea-sized amount for the whole face. Daily SPF the next morning is not optional — retinoids increase sun sensitivity, and without sunscreen you are undoing the work. Expect a few weeks of dryness and flaking while skin adjusts.

The Plug verdict

Retinol and retinal are not the same molecule, and the shelf treats them as if they were. Retinol is the better-evidenced, cheaper, slower one; retinal sits a step closer to active and tends to do more at a smaller number. Neither is "stronger" in a way the percentage on the box reliably tells you — encapsulation, packaging and how well your own skin converts matter more than the figure. If you have run retinol for a year without irritation and stopped seeing change, that is the point to look at retinal, not at a bigger retinol number.

Products featuring retinol

60 products

Editorially picked products where retinol is the hero — ranked by real value across authentic retailers.

Products with retinol

6 products

We match by ingredient mentions in product copy from our authentic retailers. If we missed a product you know contains retinol, let us know.

Related ingredients

Frequently asked

What does Retinol do?
The most-studied over-the-counter retinoid — and not the same molecule as retinal, which sits one conversion step closer to active.
Is Retinol good for beginners?
Retinol is not typically recommended as a starting-point ingredient. Ease in slowly and watch for irritation.
Is Retinol safe for sensitive skin?
Retinol can be too active for sensitive skin — patch test and start with a low frequency.
How do you use Retinol?
Evening only, on dry skin after cleansing, a pea-sized amount for the whole face. Daily SPF the next morning is not optional — retinoids increase sun sensitivity, and without sunscreen you are undoing the work. Expect a few weeks of dryness and flaking while skin adjusts.