hello everyone,

I have learnt a lot from this forum, but I'm a bit confused by the following: there's a variety of anti-aging and skin care substances that I seem to need but they all come in different products and I'm not sure how to apply them or if I should be using them all at once. So, from my readings, retinoids are key, but so are peptides and vitamin C-antioxidants, and so are collagen, elastin and hyaluronic acid...If all these come in different serums, creams, lotions, etc...then in what order should they be applied? Isn't there a serum or lotion that combines them all? thanks so much, as usual!
Carola