As far as I've read
Hydroxypinacolone Retinoate (HPR) , the trade name seems to be. Granactive
Retinoid It behaves differently from the family.
Retinoid s where it can bind to
Retinoid receptors directly, no need to convert like their families.
Retinoid s and the results were impressive. Although the current research may not be much. I would like to ask if you put HPR with
ActiveRelease Retinal™ in the same formula? Because HPR research is not much. So I still don't want to cut.
Retinaldehyde Go ahead, thank you.