Education · Jordan Blake, RD · March 9, 2026 · 8 min read
The front of a supplement bottle is marketing. The back is chemistry. Learning to read the Supplement Facts panel is the single highest-leverage skill for anyone buying wellness products.
Start with nutrient forms. Magnesium oxide and magnesium bisglycinate are both 'magnesium,' but absorption differs dramatically. The same goes for folic acid versus L-5-MTHF, and cyanocobalamin versus methylcobalamin.
Next, watch for proprietary blends. When a label lists a total blend weight without per-ingredient amounts, you cannot verify whether the clinically studied dose is present. RY21 publishes every ingredient amount individually — no exceptions.
This article is educational and is not medical advice. These statements have not been evaluated by the Food and Drug Administration. Consult your healthcare provider before starting any supplement.