NeoCell's Grassfed Collagen Peptides gives you 6g of **collagen** per serving — a genuine clinical dose for skin, landing right in the 2.5–10g range studied for improving elasticity, hydration, and wrinkle depth. The peptides are hydrolyzed from grassfed bovine, a well-absorbed form, so the headline ingredient actually delivers on what the label promises. The catch is the serving size: you'll swallow six tablets a day to get there.

Paired with it is 60mg of **vitamin C**, which your body actually needs to build collagen — it switches on the enzymes that knit new collagen fibers together. That gives the vitamin C a real job here, though 60mg is a modest amount: it covers that supporting role but sits well below the 250mg you'd want if you were taking vitamin C on its own for antioxidant or immune benefits.

The formula also includes 5,000mcg of **biotin**, marketed for hair and nails. It's dosed at the top of the typical supplemental range, but it's worth knowing that no clinical trials show biotin improves hair, skin, or nails in people who aren't actually deficient. One practical heads-up: at 5,000mcg, biotin can skew lab results — including thyroid, hormone, and cardiac panels — so stop taking it about 72 hours before any bloodwork.