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With physician-compounded topical formulations used daily, patients consistently report improved skin texture and smoothness at weeks 2 to 4, increased firmness and reduced fine line visibility at weeks 6 to 10, better hydration and radiance that holds with continued use, and a gradual improvement in skin tone evenness over 3 to 6 months

Set more realistic expectations and maintain better adherence

There are various B12 supplements, like oral and injectable forms

Reconstitution and storage Most peptides arrive as lyophilized (freeze-dried) powder requiring reconstitution with bacteriostatic water before use

Orphan drug development in China: progress and challenges