l-carnitine uses L-Tartrate: 8 Key Benefits BPI Sports CLA + Carnitine
Description
HOWEVER, if you would like to try some products anyway, I have used the Ordinarys Niacinamide serum and Klairss Freshly Juiced Vitamin C Serum

In this study, Firmicutes and Actinobacteriota were more prevalent in the V1 and V2 groups compared to the K group, which may account for the upregulation of metabolic pathways observed in the V1 and V2 groups relative to the K group

Bruhn O, Paul S, Tetens J, Thaller G: The repertoire of equine intestinal -defensins

[DOI] [PubMed] [Google Scholar] 104.Bouga H., Tsouros I., Bounias D., et al

[Abstract] The fluorescence intensity of MMP-2 in the HFSFs treated with glutathione oxidized (GLU, 2.48 mg/mL, 24 h) was 2.09 times greater than that in the HFSFs treated with ARP-100 (ARP, 100 M, 24 h)
