Marine Collagen (Type I)
Solid evidence for hair structure. Not a miracle worker, but genuinely useful for the right person.
Verdict
6/10 Mixed
Evidence
Grade B / 100+ Studies
The No-BS Summary
8 things. 60 seconds. Everything you need.
WHAT IT DOES
Fish-derived collagen. Smaller peptides for better absorption.
DOES IT WORK?
6/10 Mixed. Type I collagen from fish skin has smaller peptide size than bovine. Good evidence for skin hydration and elasticity. Hair and nail benefits are secondary but often reported. Sourcing quality varies.
HOW MUCH TO TAKE
Follow label
COST
$25-60/month depending on brand and form.
FIRST 24 HOURS
Don't expect miracles on day one. It's building in your system.
AFTER A FEW WEEKS
Most people notice something by week 2-3.
SAFETY
Safe for most people. No red flags at normal doses.
HOW IT FEELS
Improved skin texture within 4-8 weeks. Hair and nails over months.
QUICK ANSWERS
+ 4 more questions
DOSE-RESPONSE CURVE
How effective is creatine monohydrate at different doses? Here's what the research shows.