"Supporting firmness" refers to ingredients (such as peptides, retinoids, vitamin C, and niacinamide) that aim to enhance skin's structural proteins and elasticity, helping to improve apparent firmness and reduce sagging. Effects are typically gradual and depend on the specific active and concentration used.
| Reported effect | How often | Notes |
|---|---|---|
Mild transient irritation or stinging | Common | Often seen with retinoids or vitamin C, especially early in use |
Erythema (redness) | Common | Usually mild and resolves with continued use or reduced frequency |
Dryness or flaking | Uncommon | More likely with retinoid-based firming actives |
Contact dermatitis | Rare | Allergic or irritant reaction to specific peptides or excipients |
Photosensitivity | Rare | Associated mainly with retinoids; daytime sun protection advised |
Severe allergic reaction | Very rare | Hypersensitivity requiring discontinuation |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.