Free Supplement Interaction Checker
Scan vitamins, protein powders, and herbal supplements. Detect drug interactions, verify purity, and analyze ingredients instantly.
Analyze Supplements Now →SafeShelf's free supplement interaction checker analyses any vitamin, protein powder, or herbal supplement label to detect drug interactions, mega-dose toxicity risks, low-quality fillers, and label transparency issues — free, no account needed.
Understanding Your Supplements
Hyaluronic Acid Analysis
Understand oral dosages. Benefits include joint lubrication, skin hydration, and tissue repair (optimal dose: 80-200mg).
Niacin Benefits Guide
Learn the difference between Niacin (causes flushing, good for cholesterol) and Niacinamide (no flush, good for skin).
Drug Interactions
Detects critical conflicts like St. John's Wort + Birth Control, or Fish Oil + Blood Thinners.
Supplement Red Flags We Detect
The supplement industry is poorly regulated. Studies show 25% of supplements contain unlisted ingredients or don't match label claims. Here is what our AI looks for:
"Proprietary blend" hides exact ingredient amounts, often using cheap fillers. We also flag dangerously high mega-doses (e.g., 50,000% DV) of fat-soluble vitamins (A, D, E, K) which can cause toxicity.
We flag low-quality, poorly absorbed ingredients like cyanocobalamin (instead of bioavailable methylcobalamin) or magnesium oxide (instead of glycinate).