Hydroxypinacone retinoate is a retinol derivative. 

Hydroxypinacone retinoate has the function of regulating the metabolism of epidermis and stratum corneum. 

Hydroxypinacone retinoate can ensure retinol. Powerful while greatly reducing its irritation.

Vitamin A (Vitamin A) type Hydroxypinacolone Retinoate is vitamin A. that was developed To solve the problem of instability of other types of Vitamin A when in cosmetics or drugs, but still highly effective and lower skin irritation

Hydroxypinacolone retinoate is an ester of retinoic acid, therefore it is directly combined with its receptors 

and does not require preliminary enzymatic transformation in the cell. This theoretically makes it much more 

active compared to retinol and retialdehyde. According to the manufacturer's research, 

it has a significantly lower irritant potential compared to retinol when comparing 0.5% granactive retinoid 

(0.05% hydroxypinacolone retinoate) with 0.5% retinol [4]. But in fact, the ingredient is new, and there is not much research on it.

 My own experience confirms that the component works, but what does the science say?