- A
- Acne
- Acne lesion
- AHAs
- Allergen
- Alopecia
- Androgenetic alopecia
- Androgens
- Antioxidant
- Anti-wrinkle
- Astringent
- Atopic dermatitis
- Atopic eczema
- Atopy
- C
- Cell renewal
- Chapping
- Chemical filter
- Collagen
- Comedogenic
- Comedone
- Compact powder
- Concealer
- Concealer brush
- Corneal layer
- Cosmetic dermatology
- Cosmetic surgery
- Crow’s feet
- Cuticle (hair)
- Cuticle (nail)
- D
- Dandruff
- Dermabrasion
- Dermal papillae
- Dermatological corticosteroid
- Dermis
- Dermocosmetics
- Desquamation
- Dust mite
- H
- Free radicals
- Hair bulb
- Hair fiber
- Hair follicle
- Hold
- Hyaluronic acid
- Hydrolipidic film
- Hyperpigmentation
- Hyperseborrhea
- Hypoallergenic
- J
- P
- Papules
- Peeling
- Photoaging
- Photodermatitis
- Photosensitisation
- Phototherapy
- Phototype
- Physiological flora
- Pigment
- Pilosebaceous follicle
- Pore
- PPD
- Psoriasis
- Pustule
- Q
- S
- Scalp
- Scurf patch
- Sebhorreic dermatitis
- Sebum
- Skin aging
- Skin barrier
- Soft nails
- Solar lentigo
- SPF
- Sponge
- Squama
- Summer light eruption
- Sun capital
- Sun erythema
- Sun filter
- Sun-induced herpes
- Superfatted soap
- Y
- Z
0 résultat(s)
Firmness
Firmness is one of the criteria of youthful skin. It is maintained by the dermis, which acts as a mattress for the skin, and by its collagen and elastin fibers. When young, the skin is firm and toned. With age, the dermal cells deteriorate and the fibers become slack. As a result, the skin loses its firmness.