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Circadian variation affects baseline measurements
PMID: 21593563 6 Park SA, Byeon G, Jhoo JH, Kim HC, Lim MN, Jang JW, Bae JB, Han JW, Kim TH, Kwak KP, Kim BJ, Kim SG, Kim JL, Moon SW, Park JH, Ryu SH, Youn JC, Lee DW, Lee SB, Lee JJ, Lee DY, Kim KW
Effects of N-acetylcysteine on total testosterone Combining the data of six studies with eight effect sizes (subjects = 725
Neutrophil scores, a measure of inflammation, generally decreased from day 7 to day 21 across all groups, aligning with the natural progression of healing
It layers well with basically everything: niacinamide, hyaluronic acid, peptides, and vitamin C, and also pairs nicely with stronger actives like retinoids and exfoliating acids where it can help take the edge off irritation
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