If your levels were already healthy, a single shot tops you off, and the noticeable effects fade sooner
When injected, they can reach deeper tissue layers and produce structural changes that topical products simply cant replicate
Injection near the injury may provide higher local concentration
katsumadai was reported to contain nootkatone, yakuchinone, kaempferide, tectochrysin, apigenin-4,7-dimethylether, chrysin, oxyphyllacinol, izalpinin, steroid and their glycosides, and volatile oils (Qing et al., 2012)
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