Fimela.com, Jakarta The ingredients in skincare products are indeed a little challenging to understand, which ones can be used together, which ones should be avoided, which ones should be used interchangeably.Are you still often confused, Friends of FIMELA?Hyaluronic acid and retinol are two content that is quite controversial, because they are both iconic ingredients.But, is it true that hyaluronic acid and retinol should not be used together?Before answering this, let's first understand what hyaluronic acid is.Hyaluronic acid is a moisturizing ingredient for the skin, which works to reduce the appearance of wrinkles, replenish cell moisture, and accelerate wound healing, as reported by byrdie.com.Hyaluronic acid is a sugar molecule that occurs naturally in the skin and helps bind water to collagen, which in turn traps it in the skin, ultimately increasing hydration.Hydration alone gives skin a supple, radiant effect, and in general, hyaluronic acid is safe to use for all skin types.Retinol is an antioxidant that can increase cell turnover, increase collagen production, and regulate oil production.For a long time, retinol has been relied on to treat skin texture problems, acne, and signs of aging.Unfortunately, retinol also has some serious side effects and the potential for intense, prolonged exposure to skin.So, can these two ingredients be used at the same time?When used together, these two ingredients balance each other out, without sacrificing anything.Together, the two have a synergistic effect, making each easier to work effectively.Hyaluronic acid helps maintain retinol, increasing skin permeability, so when combined, these two ingredients can leave skin cleaner, smoother, more hydrated, and moisturized.The potential for side effects is quite high with retinol and very low with hyaluronic acid.So, yes, there is still the possibility of irritation, but it is very small and most likely not caused by the combination of retinol and hyaluronic acid, but by the retinol itself.How to use it properly?You should always use products with hyaluronic acid after retinol, so use a moisturizer that contains hyaluronic acid, to help maintain your skincare routine.If the retinol you are using is formulated with hyaluronic acid in it, you can assume that the product is stable.Apply moisturizer or hyaluronic acid about 30 minutes after you apply the retinol, so that it absorbs well into the skin first.For those of you who have dry or sensitive skin, use a serum containing hyaluronic acid first, before retinol, then continue with moisturizer.