• Retinoids regulate Epidermal Cell growth
and development. Required for normal production of Stratum Germinativum cells; increase mitotic activity.
• Prevent connective tissue atrophy by inhibition
collagenase enzyme activity.
• Topical application of retinoids stimulate
an increase in protein and collagen synthesis and increase in epidermal thickness.
• Stimulate the biosynthesis of GAGs.
• Improve the skin's water binding properties.
• In recent years Retinol (Vitamin A) has
been included in exfoliation formulas because the skin can convert Retinol to Retinoic Acid. Retinoic Acid is the potent skin
exfoliation agent and anti-aging agent.
• Retinol has been shown to improve the visible
signs of photo-aging as well as genetic aging when used on a daily basis.
• Deficiency in Vitamin A results in thickened,
dry cells.Symptoms include plugged follicles-keratosis pilaris.
• Keratosis pilaris and icthyosis are improved
by topical application of retinoids.
