How should I apply this hyaluronic acid serum for the best results? — DNC Hyaluronic acid 3 ml (hyaluronovaya acid)

For optimal hydration, apply a few drops of the serum to skin that is still slightly damp after cleansing or toning — this gives the hyaluronic acid immediate water to bind. Gently press it into the face and neck; do not rub aggressively. Because hyaluronic acid works by attracting and holding water in the upper layers of the epidermis, it performs best when sealed with a cream or lotion afterward. The follow-up moisturizer reduces transepidermal water loss and helps maintain the moisture reservoir the serum creates. Use once or twice daily depending on how tight or dehydrated your skin feels. In colder months or after exposure to wind, sun, or heated indoor air, you may appreciate the extra layer morning and evening. If you are using active treatments such as retinoids, acids, or vitamin C, this serum can be a soothing, non-irritating hydration step applied after those actives have absorbed and before your final cream.