DIY hyaluronic acid serums offer a cost-effective means of creating a customized, intensely hydrating skin care product. The ultimate advantage here is that you have full control of the ingredients which can be tailored precisely to your skin type and needs.
Some effective ingredients to include in a hyaluronic acid serum are vitamin A, C and E, rose water, peptides, retinoids, niacinamide and collagen. These can enhance the benefits of hyaluronic acid and provide additional benefits including anti-inflammatory and exfoliating effects, which can even and brighten skin tone, as well as reduce wrinkles, redness and sun damage.
To maintain your serum long term, store it in an air-tight, opaque bottle and add a preservative. This will prevent oxidation and delay the formation of yeast, mold and other bacteria.