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How do you use vitamin C retinol and peptides? 

7 answers found

These results, taken together, suggest a role for vitamin D derivatives and retinoids on C 2 C 12 cells.


Retinoic acid in the whole animal as well as in cells in culture works faster than retinol, which suggests that retinol first has to be converted to retinoic acid which appears to be the ‘active’ form of vitamin A.


Retinol formation appears to be inversely influenced by previous vitamin A intake, the amount of material given and current vitamin A status.


The in-vivo oxidation of retinol may be an important factor in the teratogenic activity of high doses of vitamin A.



Our data support a mechanism for retinol delivery from RBP to HKc that does not involve cell-surface RBP receptors but instead suggest that the vitamin is first slowly released from RBP and then becomes cell-associated from the aqueous phase.


These data show that the lacrimal gland stores vitamin A as fatty acyl esters of retinol.