Can tretinoin make the tear trough less visible?

Retin-A or tretinoin is the most active retinol and, as such, is many times more powerful in correcting cellular damage, preventing sticking of the keratin layer, increasing skin vascularization and increasing collagen production in the dermis, the skin's support layer. It is a drug and is,...

These ingredients can be used simultaneously. They target different things. While Retin-A helps to shed the superficial skin layers and stimulate collagen growth, kojic acid helps to lighten the skin and smooth out pigment irregularities. The Vitamin C also stimulates some collagen growth but...

Having performed bench research with retinoids including all-trans retinoic acid (Retin-A), I can tell you that retinoids have wonderful effects on the health and therefore the beauty of the skin.  They increase fibroblasts' production of collagen, especially type 1, elastin, and other...