I use a moisturizer with collagen which has great benefits for your skin. I also use unflavored hydrolyzed collagen peptides which I sometimes add to my coffee, protein shake or soup and it also has great benefits.
Mostly looking for testimonials that IF works on an internal level to change skin appearance (outside of external creams and interventions). I already use retinA , sunscreen, etc and actually get in office treatments. Thank you!