Retinal, also known as vitamin A aldehyde, is an oxidized derivative of retinol, which is generated by oxidative cleavage of β-carotene, reduced to retinol, and retinoic acid by oxidation. Retinaldehyde is an intermediate metabolite of natural retinoic acid, has similar biological activity as retinoic acid, and the skin's tolerance to it is significantly better than retinoic acid.

5.Anti-acne: kill Propionibacterium acnes and Streptococcus, etc., treat acne and reduce acne marks, treatment of skin photoaging

Attention:This product is a pure compound, which is highly susceptible to oxidation in air. Please use it in one go within a short period of time after opening the sealed package, while appropriate antioxidants need to be added to the formulation to improve the stability of the formulation.

In addition, retinal itself has a color, in formulations with color, it is necessary to consider the color change brought by retinal's own color.