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Can I Produce Too Much Collagen?

I am using: -retin-a 0.25% (ziana) for acne (but I believe this dose also has collagen building properties) - peptides (Skinmedica TNS ceramide moisturizer with peptides) -glycolic acid cream 15% (every other day separated from retin-a in time) -hyaluronic acid moisturizer -cellex-c (antioxidant vitamin c) -salacylic acid 2% (stridex pads) for acne -hydroquinone 4% for red spots -zinc oxide sunscreen I believe all of these are clinically proven, is it too much?

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