Neocell Marine collagen

Improved skin hydration (less dryness, more smoothness): Strong — HA plus collagen peptides both help with moisture retention and improving skin texture. Many users report this. Probably noticeable after a few weeks of consistent intake; also depends on your baseline hydration, skin care, environmental factors.

More plump / firmer skin, reduced fine lines: Moderately strong — collagen supports skin scaffold, making it firmer; as collagen degrades with age, supplementing may slow or partially reverse effects. Some evidence supports skin elasticity improvements. Needs consistent use over weeks to months. Nutrition, sun exposure, overall lifestyle important. It won’t work like a topical retinoid or in-clinic procedure, but supports an overall improvement.

Better skin, hair, nails:  Fair — since collagen and amino acids are building blocks for hair and nails; many users report improvements. Product claims this too.     Again, consistency matters; if diet is deficient, supplement helps more.

Supporting elasticity & structure: Good potential — type I & III collagen help maintain skin structure. May also help minor sagging over time.     Changes are gradual; extreme sagging (e.g. after large weight loss or aging) may require other interventions.

Antioxidant / protection effects: Some — via Vitamin C and possibly by reducing collagen breakdown (if the supplement / lifestyle protects against oxidative stress). But supplement alone won’t fully counter sun damage etc.    Important to pair with sun protection, good diet, etc.

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