Good genes don’t hurt either.
That said, Biotin works wonders for thicker hair and stronger nails.
Cheapest source I have found for them is Swanson Vitamins, an online supplier.
They carry stuff that even I can take, and that’s quite a feat.
I wonder if Melania uses fresh lemons in her water and cooking. I squeeze half a lemon in my water bottle every day, no sugar added.
Adding brewers yeast to your diet is also an excellent source of not only biotin but B complex as well. Add it to smoothies and salads, or just take a spoonful and wash it down with water. It’s not expensive and Trader Joe’s even carries it now.
Are they better than Vitacost.com?
I take all those Bone Vits/Mins, in 4 yrs my OP is down except 2 spots. GI track doing better too. SELENIUM works better than Melatonin for sleep and other body functions.