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GUIDE
Building a routine for dry skin
Dry skin is barrier-poor skin. Hyaluronic acid and glycerin pull water in; ceramide and squalane lock it down; shea butter and panthenol seal the surface. The Hydraderm range plus three serums gives you a complete dry-skin routine for face, body, hands, and feet.
Pourquoi ce guide
Dry skin signals an underperforming barrier — the lipid layer that keeps water in and irritants out. Treating it requires three pillars: humectants to attract water, occlusives to prevent loss, and emollients to fill gaps in the barrier. The routine below assigns each pillar to a specific BIOSAR product so the routine builds barrier function instead of masking surface tightness for a few hours.
- Étape 1
Face — water-in, water-locked
Start with the gel cleanser. Apply the hyaluronic acid serum on damp skin (humectant phase), then the face cream (occlusive + emollient phase). The gel formulation suits warmer afternoons; the cream takes over in the evening.
- Étape 2
Lipid restoration — ceramide pathway
When dryness is severe (winter, post-flight, post-cleanser), the Serenvit collagen + vitamin E serum and the face-and-body lotion add ceramide and panthenol at the level the barrier needs to repair, not just feel comfortable.
- Étape 3
Hands — high-friction, low-lipid
Hand skin loses lipids fastest because it is washed most. The antiseptic and anti-aging hand creams stack panthenol, shea butter, and (for the anti-aging) urea, which pulls water into the upper layers and softens callouses.
- Étape 4
Feet — cracked heels and dry pads
Foot skin tolerates higher urea and salicylic acid than face skin. The cracked-heel restoring cream uses both, plus shea butter for surface comfort. Apply at night under cotton socks for 2 to 3 weeks.
HydradermCrème Mains Anti-Âge
HydradermCrème Pieds Anti-Odeur
HydradermCrème Mains Antiseptique
HydradermNettoyant Corps Douche
HydradermCrème Réparatrice Talons Crevassés
HydradermLotion Visage et Corps
HydradermCrème Visage
HydradermGel Visage
SerenvitCollagen + Vitamin E Serum
SerenvitSérum à l'Acide Hyaluronique
Questions fréquentes
Should dry skin avoid acids entirely?
No, but choose them carefully. Polyhydroxy acids (PHAs) and lactic acid are gentler than glycolic. The Serenvit collagen + vitamin E serum gives barrier-friendly exfoliation through peptides instead of acids.
Hyaluronic acid feels tight on my skin — what's wrong?
Hyaluronic acid pulls water from wherever it can. Apply it on damp skin and seal immediately with a cream. On dry skin without a sealing layer, it can pull water from deeper skin layers and feel tight.
Is the cream heavy for daytime?
The Hydraderm face cream sits well under SPF and makeup. If your skin runs warm in summer, use the gel for daytime and reserve the cream for evening.
Can I use the body lotion on the face?
The face-and-body lotion is formulated for both, with face-grade comedogenicity testing. Use it when you want a heavier seal on top of the serum-and-cream layer in winter.