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It also strengthens antioxidant defenses, which may help improve skin appearance, reduce oxidative stress, and support immune health

Additional roles include repairing damaged DNA and protecting cells from stress

Acar, H., Ting, J

Unlike intact collagen protein, short peptides absorbed intact in intestine potentially delivering specific signaling effects beyond just amino acids

The most common reasons: using a standard (non-effervescent, non-liposomal) capsule with poor gut absorption, inconsistent daily use, expecting visible results before the typical 8-12 week window, unrealistic expectations set by marketing claims, low supporting nutrients like Vitamin C, or continued sun exposure without adequate sunscreen, which counteracts skin brightening effects