The secret to youthful skin lies in the magical power of retinaldehyde! Retinal (RAL) has shown remarkable effects in the field of skincare and is the golden key to skin rejuvenation.   The skincare benefits of retinal Retinal, as one of the derivatives of vitamin A, can be oxidized to retinoic acid and reduced to retinol. It not only has the anti-aging properties of retinoic acid, but also stands out with its excellent skin care effect, playing an important role in skin health and beauty. Here are several skincare benefits of retinal[1]：   •Anti photoaging and repair Retinal can significantly improve skin photoaging caused by ultraviolet (UV) radiation. In an international study involving 1462 participants[2]，after using a product containing 0.05% retinaldehyde for 90 days, the subjects' wrinkles, skin tone, telangiectasia, and pigmentation spots. All ha...

01. Introduction to Retinal In recent years, the "beauty economy" has gained popularity. Driven by the "early C, late A" skincare concept, vitamin A-based skincare products have been highly favored by consumers. The vitamin A family (retinoids) can stimulate skin cell regeneration, promote collagen production, and offer benefits such as skin repair, whitening and brightening, anti-aging, and anti-acne effects, making it suitable for all skin types. Retinal (retinaldehyde) is a type of retinoid, also known as A aldehyde. It can be reduced to retinol or oxidized to retinoic acid. The order of efficacy from low to high is: retinyl ester → retinol → retinal → retinoic acid, with retinoic acid being the only directly active form. However, retinoic acid is highly irritating, whereas retinol and retinal can be converted to retinoic acid on the skin surface, offering...