Retinol vs Retinal (Retinaldehyde): Which Should You Use, and Does Faster Mean Better?

By Englantina Hasankolli, founder, TRIPLE A Skin Science · Updated 21 October 2026

"Retinal" has become the ingredient of the moment, and searches for it in Australia have jumped. The marketing claim is simple: it is "up to 11 times faster" than retinol. That figure comes from how quickly skin converts each molecule in laboratory conditions, and it is real — but faster conversion is not the same as better results on your face, and it comes with trade-offs the marketing leaves out. Here is the full picture.

The vitamin A ladder

Every vitamin A ingredient has to be converted by your skin into retinoic acid before it does anything. The fewer steps, the faster and stronger it is — and the more irritating.

Retinol vs retinal, head to head

Speed

Retinal converts in one step, so you may see early texture change a few weeks sooner. Over three to six months, well-formulated versions of both end up in a similar place; the gap is in the first two months, not the final result.

Strength equivalence

Because retinal is more potent molecule for molecule, brands sell it at much lower percentages. As a rough guide, 0.05–0.1% retinal is in the same territory as 0.5–1% retinol, and a 0.2% retinal is a strong product that is not a sensible first retinoid. Do not compare a "0.2%" retinal to a "0.5%" retinol and assume the retinol is stronger.

Stability

Retinal is the less stable of the two: it is more sensitive to light, heat and air, which is why most retinal products are water-based emulsions with a short shelf life once opened. Retinol is oil-soluble and, when encapsulated and kept in airless packaging, stays active far longer. In Australian summer temperatures this matters more than it does in Europe.

Irritation

At comparable effective strength, retinal tends to cause more stinging and flaking in the first weeks, particularly in a water-based emulsion that offers no cushioning. A retinol in an oil base with squalane and rosehip usually gives a smoother adjustment, which is why more people stay with it.

Price

Retinal is more expensive to make and stabilise, so like for like it costs more per mL. There are low-cost retinal emulsions, but check the packaging and the supporting formula before assuming they are a bargain.

Antibacterial effect

One genuine point for retinal: it has a mild antibacterial action that retinol does not, which makes it attractive for breakout-prone skin. For most people choosing on the basis of lines and tone, this is secondary.

What about The Ordinary's retinal?

The Ordinary sells a 0.2% retinal emulsion at a very low price, and a lot of Australians searching "the ordinary retinal" are weighing it against a retinol. Three things to know: 0.2% retinal is a strong product for a first retinoid; it is a water-based emulsion in a standard tube, so stability and cushioning are limited; and the price reflects the simple formula rather than a lesser ingredient. It is a reasonable choice for an experienced user on a budget who tolerates actives well. It is not what we would hand a beginner or anyone with dry, reactive skin. We make the same comparison for retinol in The Ordinary retinol vs encapsulated retinol.

Who should pick retinal

You have used a 0.5% retinol nightly for six months or more with no irritation, you want a faster early response, your skin is oily or breakout-prone rather than dry, and you are happy to buy fresh bottles more often and store them carefully.

Who should pick retinol

You are new to vitamin A, your skin is dry, mature or sensitive, you have had a bad experience with a harsh active before, you want the better-studied ingredient, or you live somewhere hot and want a product that stays stable. That is most people, which is why PM Anti-Age Retinol 0.5% is built around encapsulated retinol in a squalane, rosehip and jojoba base rather than retinal: the encapsulation gives a slow, even release, the oils protect the barrier, and the 20 mL airless syringe keeps it at full strength to the last pump. Made in Australia, fragrance-free, A$119 with free shipping.

Whichever you choose, the method matters more than the molecule: start slowly, apply at night on dry skin, moisturise over the top and use SPF every morning. The full schedule is in Retinol for beginners, and if you are still deciding on strength, see how to choose the best retinol serum in Australia.

Frequently asked questions

Is retinal better than retinol?

Faster, not necessarily better. Retinal reaches its active form in one step so early results can arrive sooner, but it is less stable and more irritating. Over several months a well-made retinol delivers comparable results with fewer side effects.

Can I use retinol and retinal together?

No need, and not advised. Pick one. Using both is simply a higher total vitamin A dose with more irritation.

Is 0.2% retinal the same as 0.2% retinol?

No. Retinal is several times more potent per percent. A 0.2% retinal is closer in effect to a 1% retinol than to a 0.2% retinol.

Can I use retinal or retinol while pregnant?

Neither. All topical vitamin A derivatives are avoided during pregnancy and breastfeeding. Use a vitamin C serum and hyaluronic acid instead.

Which gives better results for pigmentation?

Both help by speeding cell turnover. For sun-induced pigmentation in Australia, the combination that makes the biggest difference is a retinoid at night with 20% vitamin C in the morning and SPF — see best serum for pigmentation and dark spots.