This site's own framing addresses several connected areas rather than one — worth understanding the stated reasoning behind that five-ingredient approach.
This site describes the theory directly: supporting keratin structure, cellular renewal, oil balance and hydration together addresses more of the beauty picture than any single ingredient would, delivered gradually through consistent daily use.
Worth noting this is a design-philosophy explanation, not a claim that five ingredients are clinically proven superior to one — this site is separately direct that its citations concern individual ingredients, not a clinical trial of the finished gummy.