IGF-1 (Insulin-Like Growth Factor) is a small polypeptide that plays a critical role in the proper regulation of adult cellular growth in almost all tissue types.* NOW® IGF-1 is extracted from New Zealand deer antler velvet. Competitive athletes who are regularly tested should check with their sanctioning body for the status of this supplement.
De-ionized Water, Vegetable Glycerin, Xylitol, Natural Lemon Flavor, Phospholipids (soy), Citric Acid and Potassium Sorbate (as preservative).
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