Transparent Labs

Transparent Labs built its entire brand around the problem that plagues the supplement industry: you often can't tell what's actually in the bottle. Every product label discloses the exact dose of every ingredient — no proprietary blends hiding underdosed formulas behind vague names. Their products are made without artificial sweeteners, preservatives, and colors, and their flagship protein powders are made from grass-fed whey. Ingredients are included at research-backed doses rather than the "fairy dusting" common elsewhere in sports nutrition. Endomondo Where Transparent Labs genuinely stands apart is verification. All products undergo ISO-accredited lab testing for purity, potency, and safety, and the brand holds Informed Choice certification (which screens for banned substances) and Informed Protein certification (which verifies true protein content) on qualifying products. Just as importantly, they publish the receipts: you can look up a Certificate of Analysis for your specific product by matching the lot number on your bottle or bag on their third-party testing page. Batch-level COAs cover contaminants like heavy metals (lead, cadmium, arsenic, mercury) and microbial contaminants — a level of disclosure very few brands match. Transparent Labs + 2 Their catalog centers on sports nutrition: 100% Grass-Fed Whey Protein Isolate, BULK and LEAN pre-workouts, creatine monohydrate, and a growing line of everyday wellness products. The tradeoff is price — most Transparent Labs supplements cost more than comparable products from other brands, reflecting ingredient quality and testing rigor, and they're mostly sold direct rather than in retail stores. One honest caveat for our readers: many products are formulated with a blend of active ingredients, some of which may interact with medications or may not be appropriate for certain health conditions — as always, check with your doctor before adding anything new. EndomondoHealthline We recommend Transparent Labs because they meet all three Clean Label HQ standards: full ingredient and dosage disclosure on every label, independent third-party testing you can verify yourself by lot number, and formulas free of artificial fillers and additives. If you want proof rather than promises, this is one of the easiest brands in the industry to independently verify.