Tsutsui, S., et al., Distinct Expression Patterns of Fibrillar Collagen Types I, III, and V in Association with Mammary Gland Remodeling during Pregnancy, Lactation and Weaning
The ingredients include liposome L-glutathione yeast extract (34.22%), pullulan, vitamin C, enzyme-treated stevia, lemon juice powder, hydroxypropylmethylcellulose, milk thistle extract powder, -cyclodextrin, glycerin, natural lemon flavoring, and other edible oils and vegetable products
While you could technically take a supplement containing NAD+ as the primary ingredient, research suggests that its bioavailability isnt nearly as good as two of its precursors: nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN).46 Besides NAD+, NR is also a precursor to NMN.47 And since NMN is closer to becoming NAD+ than NR is, some people feel that its the better option, but either one should be effective.48 If youre interested in these supplements, it could be worth trying one of each type (NR or NMN) to see which works better for you
Improvements in body composition (increased lean mass, reduced fat mass) have been observed in some research models and are cited in preclinical and clinical literature, though robust, large RCT data for aesthetic/bodybuilding uses are limited