In the article which speaks of obtaining long long hair, which is supposedly in now:
Many of the glossiest girls in town, including Gwyneth Paltrow and Karlie Kloss, swear by Viviscal. "I can't think of anyone not taking Viviscal," says Townsend.
Scientifically formulated hair vitamin supplements for hair loss with the exclusive marine complex AminoMar®. These hair vitamin supplements for women help to nourish thinning hair and promote existing healthy hair growth from within.*
The men version:
Viviscal Man is scientifically formulated hair growth vitamins with the proprietary marine complex AminoMar, for men who wants to nourish thinning hair and promote existing hair growth from within.*
The brand also has a product called Hair Filler Fiber, here's a video of how it works.