If you have spent any time researching skincare actives, you have almost certainly come across both retinal and retinol. They sound almost identical, they come from the same vitamin A family, and they are both widely used in anti-aging skincare. But they are not the same thing — and the difference between them matters more than most people realise.
At BioMaxx Skin Lab, we chose retinal as the star active in our Advanced Retinal Serum for a very specific reason. This article explains exactly what that reason is, and why it might matter for your own routine.
What Is Vitamin A in Skincare?
Vitamin A is one of the most well-researched ingredients in all of skincare. When applied to skin, derivatives of vitamin A work by converting into retinoic acid — the biologically active form that your skin cells can actually use. The fewer conversion steps an ingredient requires, the more efficiently and quickly it works. This is where retinal and retinol part ways.
What Is Retinol?
Retinol is the most widely known form of vitamin A in skincare. When you apply it, it undergoes two conversion steps before becoming retinoic acid:
Retinol → Retinal → Retinoic Acid
Because retinol requires two steps, it works more slowly and a significant portion degrades during those conversions before it can deliver its benefits. This is why retinol products often need months before visible results appear.
What Is Retinal?
Retinal — also called retinaldehyde — is one step ahead of retinol in the conversion chain. It only needs one conversion step to become retinoic acid:
Retinal → Retinoic Acid
Research has shown that retinal can be up to 11 times more effective than retinol at equivalent concentrations. That means at a lower concentration, retinal delivers more of what your skin needs — faster, and with less wasted ingredient along the way.
How Do They Compare?
- Speed of Results — Retinol typically requires 3 to 6 months before significant improvements appear. Retinal users often notice changes within 4 to 8 weeks, with some seeing a difference in as little as 2 weeks.
- Potency — At the same concentration, retinal is significantly more potent, delivering results that would require a much higher retinol concentration to match.
- Irritation Potential — Despite being more potent, retinal does not necessarily cause more irritation when formulated thoughtfully. BioMaxx pairs retinal with bakuchiol to reduce the risk of redness, peeling, or sensitivity.
- Stability — Retinal is less stable when exposed to air and light, which is why formulation and packaging matter enormously. Our serum is designed to protect retinal's potency from lab to skin.
Why Does the Conversion Step Matter?
Think of it like a delivery. Retinol has to make two stops before reaching the destination. Retinal only makes one. With fewer stops, more arrives intact, faster, and more efficiently — meaning more active ingredient actually reaches the skin cells that need it.
Is Retinal Right for Everyone?
Retinal is suitable for all skin types, including sensitive skin, when formulated correctly. The BioMaxx Advanced Retinal Serum uses retinal alongside bakuchiol, niacinamide, Panax ginseng root extract, and hydrating botanicals — gentle enough for everyday evening use.
If you are new to vitamin A skincare, start every other evening for the first two weeks, then build up to nightly use as your skin adjusts.
Who should avoid retinal: Pregnant or breastfeeding individuals are generally advised to avoid all vitamin A derivatives. Always consult your healthcare provider if you are unsure.
How to Get the Most Out of Your Retinal Serum
- Apply to clean, dry skin. Pat your skin dry after cleansing and wait 30 seconds before applying.
- Use in the evening only. Always follow with SPF 30 or higher the next morning — this step is non-negotiable.
- Use 2 to 3 pumps. Gently press the serum into your skin rather than rubbing.
- Follow with moisturiser. This seals in the serum and supports the skin barrier overnight.
- Be consistent. Give it at least 4 weeks before evaluating your results.
Retinol and retinal both work toward the same goal — smoother, more even, more radiant-looking skin. But retinal gets there faster, more efficiently, and at lower concentrations, making it the smarter choice for anyone who wants visible results without a 6-month waiting period.
At BioMaxx Skin Lab, we chose retinal because your skin deserves the most effective ingredient available — paired with the botanical support to make it gentle enough to use every single night.
Ready to wake up to better skin?
Shop the BioMaxx Advanced Retinal Serum with Ginseng — 50ml of science-backed night renewal, formulated for all skin types.