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Samples in periodicals archive:
Granactive Retinoid is a next-generation anti-aging product delivering the performance of retinol and retinoid derivatives with significantly lower irritation potential, thus supporting clear, visibly more youthful looking skin with better consumer acceptance, according to Grant Industries.
BeautiControl Regeneration Overnight Retinol Recovery Serum ($46)
You can get your hands on milder forms of retinoid in over-thecounter retinol creams.
HydrePure, a new delivery system based on Hydresia, is being incorporated in the new product HydrePure Retinol, a naturally encapsulated pure retinol in Oleosome, which provides enhanced stability and a reduced irritation potential, when compared to retinol alone.
There is still a controversy about the presence in the skin of the enzymes able to convert beta-carotene into vitamin A (retinol), although a recent study demonstrated the conversion of beta-carotene into retinol in human cultured epidermal cells.
Retinol penetrates the outer layers of the skin and repairs damage to the lower layers, where collagen and elastin are found.
Decreased concentrations of circulating thyroid hormone and transthyretin also suggested that alterations in retinol transport complex were associated with increased DDT uptake.
There is a lot we know about the three active forms of vitamin A: retinaldehyde is required for rhodopsin formation and vision; retinoic acid is an important signalling molecule that acts to regulate the expression of numerous genes, several of which are involved in growth and differentiation; retinol as the precursor of both other forms, plays many roles including being vital to normal functioning of the immune system.