Products marketed under this name typically combine collagen peptides, biotin, glutathione, and vitamin C — each individually has real, if variable-quality, supporting literature (see Glutathione Rush's page for that specific component's scope note). This product's exact formulation and ratios weren't independently confirmed against a primary source in this research pass.
Essentially, yes — niacinamide, thiamine, pantothenic acid, niacin, folic acid, and riboflavin cover most of the B-vitamin family, plus choline and inositol. Biotin is the headline ingredient for the hair/skin/nails marketing angle specifically, even though actual biotin deficiency — the scenario where supplementing clearly helps — is fairly rare in people eating a normal diet.
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