レチノイド include vitamin A (retinol) and its metabolites, such as retinal, retinyl esters, and retinoic acid（retinol itself is the parent compound, not a metabolite）. Among these, retinoic acid is the most irritating and is typically used as a prescription drug, while the others can be used in skincare products. Regardless of the type of retinoid, they ultimately exert their effects on the skin after being metabolized into retinoic acid.
ZLEY™PKG301
| 表示番号: | Glycerin,Water,Lecithin,HydrogenatedPhosphatidylcholine,Caprylic/CapricTriglyceride,Tocopherol,Helianthus Annuus(Sunflower)SeedonlRetinylpalmitate |
| プロパティ: | Regulates epidermal cell development and differentiation; promotes healthy stratum corneum metabolism; inhibits sebum secretion; stimulates collagen synthesis; reduces collagen degradation; repairs UV-induced photodamage; relatively lower irritation compared to other retinoids |
| 外観： | 黄色い粘性のある液体 |
| 推奨用量: | 1%-5% |
| 溶解度: | Insoluble in water; soluble in oils, alcohols, and organic solvents |
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