![HPLC/UV quantitation of retinal, retinol, and retinyl esters in serum and tissues. | Semantic Scholar HPLC/UV quantitation of retinal, retinol, and retinyl esters in serum and tissues. | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/6efe31b046a8129a199e994603192bbc25b4b650/13-Figure1-1.png)
HPLC/UV quantitation of retinal, retinol, and retinyl esters in serum and tissues. | Semantic Scholar
![Table 1 from Scientific Committee on Consumer Safety SCCS OPINION ON Vitamin A (Retinol, Retinyl Acetate, Retinyl Palmitate) | Semantic Scholar Table 1 from Scientific Committee on Consumer Safety SCCS OPINION ON Vitamin A (Retinol, Retinyl Acetate, Retinyl Palmitate) | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/67fd0c700b1d3e7824ff1a80fab45febc4aae1fa/12-Table1-1.png)
Table 1 from Scientific Committee on Consumer Safety SCCS OPINION ON Vitamin A (Retinol, Retinyl Acetate, Retinyl Palmitate) | Semantic Scholar
![Photodecomposition of Vitamin A and Photobiological Implications for the Skin† - Fu - 2007 - Photochemistry and Photobiology - Wiley Online Library Photodecomposition of Vitamin A and Photobiological Implications for the Skin† - Fu - 2007 - Photochemistry and Photobiology - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/e1bb58f5-29d5-48d2-86d0-4f9acaccde81/php_055_f1.gif)
Photodecomposition of Vitamin A and Photobiological Implications for the Skin† - Fu - 2007 - Photochemistry and Photobiology - Wiley Online Library
![Retinyl palmitate vitamin supplement molecule. Ester of vitamin A (retinol) and palmitic acid. Skeletal formula Stock Photo - Alamy Retinyl palmitate vitamin supplement molecule. Ester of vitamin A (retinol) and palmitic acid. Skeletal formula Stock Photo - Alamy](https://c8.alamy.com/comp/2BMPRMB/retinyl-palmitate-vitamin-supplement-molecule-ester-of-vitamin-a-retinol-and-palmitic-acid-skeletal-formula-2BMPRMB.jpg)
Retinyl palmitate vitamin supplement molecule. Ester of vitamin A (retinol) and palmitic acid. Skeletal formula Stock Photo - Alamy
![A simple and robust quantitative analysis of retinol and retinyl palmitate using a liquid chromatographic isocratic method - ScienceDirect A simple and robust quantitative analysis of retinol and retinyl palmitate using a liquid chromatographic isocratic method - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S1021949817301382-fx1.jpg)
A simple and robust quantitative analysis of retinol and retinyl palmitate using a liquid chromatographic isocratic method - ScienceDirect
![Evidence for the Efficacy of Over-the-counter Vitamin A Cosmetic Products in the Improvement of Facial Skin Aging: A Systematic Review – JCAD | The Journal of Clinical and Aesthetic Dermatology Evidence for the Efficacy of Over-the-counter Vitamin A Cosmetic Products in the Improvement of Facial Skin Aging: A Systematic Review – JCAD | The Journal of Clinical and Aesthetic Dermatology](https://jcadonline.com/wp-content/uploads/Spierings_Table2Sept21.jpg)
Evidence for the Efficacy of Over-the-counter Vitamin A Cosmetic Products in the Improvement of Facial Skin Aging: A Systematic Review – JCAD | The Journal of Clinical and Aesthetic Dermatology
![Amazon.com: powdermint Vitamin A Powder (Palmitate Powder, Retinyl Palmitate Powder, Retinol Powder) 15000 IU (Multiple Sizes) Non-GMO, Vegan, Wrinkle Reduction, Skin Health - Scoop Included (25 Grams) : Health & Household Amazon.com: powdermint Vitamin A Powder (Palmitate Powder, Retinyl Palmitate Powder, Retinol Powder) 15000 IU (Multiple Sizes) Non-GMO, Vegan, Wrinkle Reduction, Skin Health - Scoop Included (25 Grams) : Health & Household](https://m.media-amazon.com/images/I/51saoSSenRL.jpg)