The Hair Love Duo: Biotin and Vitamin C for a Vegan Hair Routine
What's in the Hair Love Duo, what biotin and vitamin C each do for hair, what the evidence really supports, and who this fully vegan bundle is for.
皮肤和头发
The Beauty Duo: Hair, Skin & Nails Gummies Plus Vitamin C, Explained
What's in the Beauty Duo, why we pair our Hair, Skin & Nails Gummies with vitamin C, what the research supports, and how it compares to our other beauty bundles.
Is 5,000 mcg of Biotin Safe?
5,000 mcg is one of the most common biotin doses. Here is what it means compared with your daily needs, what the safety data shows, and the one thing to...
Signs of Biotin Deficiency (and Who’s Actually at Risk)
True biotin deficiency is uncommon, but it has telltale signs. Here is what to look for, who is at higher risk, and why testing is trickier than it sounds.
Biotin vs. Collagen: Which Is Better for Hair?
Biotin and collagen are the two biggest names in beauty supplements. Here is how they differ, what the evidence says about each for hair, and how to choose.
Biotin for Brittle Nails: What the Research Shows
Nails are where biotin’s evidence is most interesting, and still pretty limited. Here is what the brittle-nail studies found and how they compare with collagen.
Does Biotin Cause Acne? What the Evidence Says
Plenty of people say biotin made them break out. Here is what research actually shows, where the theory comes from, and what to do if you notice a change.
Biotin and Lab Tests: Why You Should Tell Your Doctor
High-dose biotin can make some blood tests read falsely high or low, including heart and thyroid tests. Here is what the FDA says and what to do before blood work.
Can You Take Too Much Biotin?
Biotin has no official upper limit, but “non-toxic” isn’t the whole story. Here is what happens at high doses, and the risk most people haven’t heard about.
How Much Biotin Should You Take for Hair Growth?
Supplements range from 30 mcg to 10,000 mcg of biotin. Here is what the evidence says about dose for hair, and why more isn’t automatically better.
Does Biotin Help Hair Growth? What Studies Actually Show
Biotin is the best-known hair vitamin, but the research behind it is surprisingly thin. Here is what the biotin-specific studies actually found.
What Is Biotin Good For? (It’s More Than Hair)
Biotin is famous for hair, but its real day job is metabolism. Here is what this B vitamin actually does in your body, and where the hype outruns the evidence.
Biotin Gummies 101: What It Does and How Much You Actually Need
What biotin actually does, how much is in a typical gummy, and whether a standalone biotin gummy or a fuller beauty blend makes more sense for you.
Men's Hair Thinning: What Biotin Can (and Can't) Actually Do
An honest look at what's really behind most male hair thinning, and where a supplement realistically fits into the picture.
The Radiant Skin Bundle: Collagen and Biotin, What Each One Actually Does
Collagen and biotin show up together in almost every "skin and hair" gummy on the market. They're not the same ingredient doing the same job twice — here's what each...
