The one exception is retinol, which causes sun sensitivity and should only be used in your evening skin care routine
Often, these medicines are used for no more than six months
(2) interventions utilizing polysaccharides derived from traditional Chinese medicine (TCM), which were categorized by source as either single-herb polysaccharides or compound formula polysaccharides, with the stipulation that all involved TCM must be officially documented in the Chinese Pharmacopoeia issued by the National Medical Products Administration and the National Health Commission - only pharmacopoeia-listed species qualify as legally recognized TCM
In practice, many protocols do not treat this as an either/or decision at all, and instead combine the two mechanisms a point covered in the next section
It may help lighten post-inflammatory hyperpigmentation, providing a smoother, clearer complexion
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