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a follow up question: is there a natural source for L-Proline? I've been drinking this Fuze drink that has it as an ingredient and I've noticed that my skin has gotten a lot clearer (I've also been working out and sweating like a mad man and eating a lot better but I digress). I've been to vitamin stores and never see L-Proline. I think it's an amino acid, but I'm not sure. any one know?
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