Training and supplement education
Practical explainers on training, ingredients, testing, and label literacy. Use them to make decisions based on the label and your training—not marketing noise.
Start with: progressive overload, creatine monohydrate, caffeine and exercise performance, or what BSCG certification verifies.
A proprietary blend is a group of ingredients listed on a supplement label under a single name with only the
total combined weight disclosed — not the individual dose of each ingredient. You know
what's in the product, but you have no idea
how much of each ingredient you're actually getting. It's legal, it's widespread, and it's the single biggest obstacle to making an informed supplement purchase. Do Vitamins has never used a proprietary blend and never will — every ingredient and every dose in PurePump is fully disclosed on the label.