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WellnessChecked · July 2026
How to Read a Supplement Label — Complete Guide 2026
Supplement labels contain critical information — but only if you know how to read them. Complete guide to Supplement Facts panels, proprietary blends, serving sizes and red flags.
⚡ Quick AnswerLast Reviewed: July 2026
Key things to check on a supplement label: serving size (how many capsules per dose), each ingredient's individual dose (vs hidden proprietary blend), the specific form of each ingredient (KSM-66® vs generic ashwagandha), the manufacturer's facility certification, and the list of other ingredients for fillers and allergens.
The Supplement Facts Panel
In the US and UK, supplement labels must include a Supplement Facts (US) or Nutrition Information (UK) panel listing all active ingredients. For US products, the serving size is stated at the top — this is critical because some products list impressive amounts per container but the serving size may be 4-6 capsules.
The Proprietary Blend Red Flag
A proprietary blend lists multiple ingredients under a single combined dose (e.g. 'Testosterone Support Complex 850mg'). This hides the individual ingredient amounts — allowing manufacturers to include popular ingredients at sub-therapeutic micro-doses. WellnessChecked considers proprietary blends a significant negative quality signal.
Check: serving size (number of capsules per dose), each ingredient's individual amount (not hidden in a proprietary blend), the specific form of each ingredient and the manufacturer's facility certification.
A combined dose for multiple ingredients without disclosing individual amounts. It allows manufacturers to include popular ingredients at sub-therapeutic doses without transparency.
KSM-66® and generic ashwagandha are very different products despite the same plant name. Patented forms have standardised purity, specific clinical evidence and quality controls.
The amount that constitutes one dose. Critical because some products list amounts per container or per batch — not per dose. Always check how many capsules constitute one serving.
Avoid: artificial colours and flavours, titanium dioxide, hydrogenated oils and unnecessary fillers. Prefer supplements with minimal 'Other Ingredients'.
Disclaimer: For informational purposes only. Dietary supplements. Not evaluated by FDA or MHRA. Not intended to diagnose, treat, cure or prevent disease. Individual results vary. Full disclaimer →