Everything You Need To Know About

Retinaldehyde

What is Retinaldehyde?

You’ve heard of retinol, but have you heard of retinal? In the skin, retinol undergoes two sequential oxidative conversions to the biologically active form of Vitamin A, retinoic acid. Retinol is first oxidized to an aldehyde, aka retinaldehyde, which is then further oxidized to a carboxylic acid, retinoic acid. This natural conversion path makes retinaldehyde the closest active form of retinoid that is available without prescription. Read on to learn more about retinal and our new Retinaldehyde Cream Serum 0.05%.

Gift With Purchase Ends Sunday

Layers Well With

*Valid on US orders containing Retinaldehyde Cream Serum 0.05% until Sunday, September 25 at 11:59pm PST. Limit one per customer. All orders receiving a free gift are FINAL SALE. Gift with purchase is non-transferable, non-retroactive and non refundable and cannot be combined with other offers or promotions.