Retinol (Vitamin A), is well-known as an active ingredient in skin creams and serums. A 2007 randomised, double-blind, vehicle controlled study evaluated the effectiveness of topical retinol in improving naturally aged skin: ‘Topical retinol improves fine wrinkles associated with natural aging. Significant induction of glycosaminoglycan, which is known to retain substantial water, and increased collagen production are most likely responsible for wrinkle effacement.’ (Kafi, R. et al. 2007, p.606)…
…While vitamin A is important to the body it can be toxic in high doses and can also have a drying effect so, if using retinol, you may want to include hyaluronic acid serum to lock in the moisture.
N.B. Facial Enhancement Acupuncture is contraindicated for patient’s actively trying for a baby, pregnant or breast-feeding and retinol should not be applied in any of these cases. Vitamin A is also not recommended for patients undergoing skin peeling procedures or taking medication prescribed for acne.
Excerpt taken from my book – Facial Enhancement Acupuncture: Clinical Use and Application (Affiliate link)
Kafi, R., Kwak, H.S.R., Schumacher, W.E., Cho, S. et al. (2007) ‘Improvement of Naturally Aged Skin With Vitamin A (Retinol).’ Archives of Dermatology 143, 5, 606-612.