This is one of the best Collagen Peptides I have tried. ! I also love that Natural Factors takes it a step further by partnering with ISURA for third-party testing. The ISURA certification process checks for over 800 contaminants, including pesticides and heavy metals, ensuring that what you're using is non-GMO, safe, pure, and potent. You can trust this product to deliver exceptional quality every time. Clinical and scientific studies have demonstrated that collagen peptides can significantly improve skin hydration and boost collagen production, helping to reduce the appearance of wrinkles while promoting stronger nails and healthier hair. LTKFindsUnder50 LTKOver40 LTKBeauty