Our intermediate-level serum has all the greatness of Retinoid 1, but with an active level of 0.5% hydroxypinacolone retinoate (HPR) and 0.05% retinal added. This has been developed for those accustomed to using vitamin A products who want to level up their routine to maintain an even, radiant complexion.
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311 ratings
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I started off with the Retinoid 1 from the mini in the pm kit and then bought the 2. So far no sensitivity and I can see the texture of my skin is improving, both in looks and how it feels to touch, much smoother. Great product!
S
Shirley · October 23, 2026
I stayed on Ret 1 for about a year and have now stepped up. Easy transition and already noticing a difference in my skin after 3 weeks
J
Jennifer · October 31, 2026
The best
My skin has lapped this up. I changed to SR retinoids from another very yellow brand and I’m so glad I did. The difference in my complexion really shows, my skin is clear and glowing. Thank you so much SR
