Between retinolniacinamide, vitamin C, length serums or oil baths, it’s difficult to know what to put on, when, and without damaging your skin or hair. Marie Claire reports that sun protection, retinoid-based cosmetics and acne dominated beauty questions on Google in 2024, showing how people are obsessed with these topics, well beyond “Sephora kids.”
Instead of piling up products, the challenge is to build a
beauty routine clear: the right serum at the right time, a retinoid adapted to your tolerance, the right dose of sun protection, and a simple gesture for dry hair. By combining the advice of Femina and Marie Claire, we obtain a concrete roadmap to answer the questions that come up in the bathroom.
Order of serums: vitamin C, hyaluronic acid and retinol without misstep
Femina reminds us of a simple rule: “It is rather recommended to use only one serum at a time and apply it morning or evening, depending on its action, before day or night treatment. If you want to treat two problems, keep one for the morning and another for the evening.“
In practice, Femina suggests reserving the morning for a serum with vitamin C, an antioxidant, orhyaluronic acidvery hydrating, then keep a restorative active ingredient like retinol or niacinamide. As retinol is photosensitizing, the magazine advises applying it only in the evening and using an SPF 50 treatment the next day.
Retinol, retinal, tretinoin: choose the right anti-aging product and protect your skin
Marie Claire goes so far as to write that “2024 is definitely the year of retinol”. The active ingredient neutralizes free radicals linked to signs of aging, stimulates cell renewal and collagen production, refines skin texture and helps regulate sebum. In other words, a complete anti-aging product, to be introduced gradually to avoid redness and irritation.
For mature or sensitive skin, Femina indicates that retinol and
retinal target the signs of aging but that retinal transforms more quickly into retinoic acid in the skin and is often better tolerated. Marie Claire presents the
tretinoin as a vitamin A derivative reserved for severe acne, as a treatment in the evening, which also makes the skin more sensitive to UV rays, to be protected every day.
Dry hair, niacinamide, SPF 50: other beauty questions that come up
To combine active ingredients without irritating, Marie Claire often recommends reserving niacinamide for the morning and
retinol in the evening, with systematic sunscreen the next day. On the sun side, Quentin Douce, co-founder of the PERS brand, recalls that “no sun product, even very high protection, can guarantee 100% protection, so it is impossible to be totally protected even with the highest indices”.
For dry hair, Femina answers that oil bath and mask are not opposed: “The two rituals are complementary, so you can alternate them depending on the condition of your hair.” The oil bath nourishes very damaged lengths, the mask hydrates and repairs more quickly after shampooing, this duo limits breakage and the appearance of split ends.