So I take Biotin for my hair, and I came across this article that suggests Biotin actually aids in raising IGF1 levels as well... I couldn't find any other info to support this claim so I figured I'd post this up here and see what everyone else may think about it! I'd be curious to see how big of a difference it would in fact yield, but I'm running GH right now so I won't be able to compare a baseline vs taking just Biotin. Once I read this I stopped taking my Biotin because I don't want any false reports back when I take my IGF levels a few weeks from now. Anyhow here is the article if anyone wants to read it too! I'll copy and paste the text here, not sure if I'm allowed to post a link? Anyhow, and I quote:

"The concentration of the growth factor IGF-1 rises and falls in accordance with fluctuations in the concentration of biotin, a B vitamin [see structure below]. Researchers at the Universidad Nacional Autonoma de Mexico have published an article on this in the European Journal of Nutrition, but it's not yet clear whether athletes will benefit from these findings.

Biotin
If you give laboratory animals too little biotin their growth is retarded. But how come? What's the mechanism at work here? This is the question the Mexicans set out to answer in an animal study where they gave mice a diet lacking in biotin from three weeks of age on.

The supplements industry regards biotin as a vitamin that strengthens nails, skin and hair. To nutritionists, biotin is a co-factor for processes in the body through which energy is extracted from food. Under normal conditions you are only likely to develop a biotin deficiency if you eat large amounts of egg protein. Protein in eggs contains avidin, a peptide that neutralises biotin. The longer you cook egg protein, the more inactive the avidin becomes. In some experiments, researchers cook egg protein for as long as an hour to make 100 percent sure that they have deactivated the avidin.

The researchers gave one group of mice a standard diet, and gave two experimental groups a diet containing 30 percent egg protein. One of the experimental groups got food containing no biotin, the other got food to which biotin had been added. As the researchers expected, the mice with a biotin deficiency grew less fast.

When they examined the blood of the no-biotin mice the researchers discovered how the deficiency had caused the retarded growth. Although the growth hormone concentration was normal, the IGF-1 level in the mice's blood was reduced.

More biotin, more IGF-1

The researchers speculate that biotin does something with the DNA, RNA and the proteins that 'read' the genetic material. Biotin gets cells to produce more IGF-1, but how this happens the researchers do not go into.

Nor did the Mexicans examine what happens to the IGF-1 level if you put the mice back on a normal diet, and give them a high dose of biotin on top of that."