Can niacinamide, hyaluronic acid, salicylic acid, glycolic acid and vitamin C be used at the age of 16?

It is difficult to propose a specific way of care only on the basis of such a short description. Before taking any skin care, I encourage you to consult a dermatologist or beautician. The right specialist will be able to assess the condition of your skin and adjust the appropriate products according to her individual needs of your skin. As a pharmacist, I can only give you general information about the substances listed: 1) Niacinamide: This is vitamin B3 that can help reduce pimples and redness of the skin. Niacinamide is best suited for oily, acne-prone skin, especially with purulent and inflammatory lesions. Dry skins react differently to niacinamide, so it will not serve everyone. It is worth starting with products with low concentration and gentle on the skin. e.g.: Ducray Keracnyl PP+: https://www.gdziepolek.pl/produkty/113034/ducray-keracnyl-pp-krem-przeciw-niedoskonalosciom-krem/apteki?pvid=268551#internetowe 2) Hyaluronic acid: This ingredient creates a moisturizing, multi-level layer on the skin that will protect your complexion from the harmful effects of the environment. Products with hyaluronic acid are usually safe for younger skin, but you should choose those with a light texture, e.g.: Dermedic Hydrain3 Hialuro cream-gel: https://www.gdziepolek.pl/produkty/88890/dermedic-hydrain3-hialuro-krem-zel-ultranawilzajacy-zel/apteki?pvid=211801#internetowe 3) Salicylic acid: This is an ingredient often used in acne products because it helps in unblocking pores and reducing inflammation. However, the use of salicylic acid at a young age requires caution and medical advice, as it may be too irritating to delicate skin, e.g.: CeraVe SA smoothing cleansing gel: https://www.gdziepolek.pl/produkty/100868/cerave-sa-wygladzajacy-zel-do-mycia-zel/apteki?pvid=250173#internetowe 4) Glycolic acid: This is a popular ingredient in products to exfoliate the skin and improve its texture. The use of glycolic acid in adolescents also requires specialist evaluation and medical care, due to the potential irritant effects, e.g.: LIQ CG Serum Night Glycolic Peel: https://www.gdziepolek.pl/produkty/95724/liq-cg-serum-night-glycolic-peel-plyn/apteki?pvid=240233#internetowe 5) Vitamin C: This is a powerful antioxidant that can help lighten the skin and reduce pigmentation spots. Products with vitamin C are usually used in people of all ages, but it is worth consulting a doctor to choose the right concentration and form of the product, e.g.: Pharmaceris N C-Capilix: https://www.gdziepolek.pl/produkty/88926/pharmaceris-n-c-capilix-koncentrat-z-witamina-c-plyn/apteki?pvid=252426#internetowe In conclusion, young people can benefit from many care products, but it is always worth remembering to consult a doctor to choose the right products for individual needs Skin. The GdziePoLek.pl service also allows you to obtain a teleconsultation with a doctor: https://www.gdziepolek.pl/telekonsultacja/z-dermatologiem