Muscle & Brawn
All Trusted Brands
All
Verified only
Has a discount
11 brands
No 1 Brand
9.4
/ 10
★★★★★
What we liked
Exceptional purity & testing (≥98%)
Pharmaceutical-style packaging for stability
Broad catalog across peptides & nootropics
Strong reputation & consistency across years
Worth knowing
Some items frequently out of stock due to high demand
Limited long-term data for some compounds
No 2 Brand
9.3
/ 10
★★★★★
Catalog is specifically organized around muscle building, fat loss, testosterone support, and workout performance.
Range includes creatine, protein, EAAs, beta-alanine, and L-citrulline alongside more specialized formulas.
Orders of $99+ qualify for free US shipping.
No 3 Brand
9.0
/ 10
★★★★★
Publishes analytical reports using methods including LC-MS/MS, HPLC-UV/MS, and GC-MS.
Shipping coverage includes the US, Canada, Europe, South Asia, the Middle East, and other regions.
Relatively competitive pricing.
The rest
Every other vendor we have tested, by score.
PureRawz
8.7
/ 10
★★★★☆
Identifies MZ Biolabs as its testing laboratory, and published reports provide detailed analytical results.
Orders over $100 qualify for free shipping, which is relatively accessible.
Published reports include lot numbers and analytical data, making it possible to trace testing to specific samples.
Sports Technology Labs
8.6
/ 10
★★★★☆
One-business-day handling and typical US delivery of 2–5 business days.
US customers can return eligible purchases within 60 days, although return shipping is the customer's responsibility.
Provides detailed guidance on how to interpret COAs rather than simply displaying purity percentages.
8.6
/ 10
★★★★☆
Yes Clinic is a U.S.-based telehealth provider offering online access to hormone, weight-management, sexual-wellness, and hair-growth care. Patients complete an intake, consult a licensed provider, and receive prescriptions…
8.5
/ 10
★★★★☆
Product pages include direct “Download COA” links, making documentation relatively easy to find.
Can synthesize custom peptides when researchers provide the desired sequence and quantity.
Specializes in peptides and peptide blends.
Behemoth Labz
8.3
/ 10
★★★★☆
Community reports generally describe quick US shipping, though experiences vary.
An established brand in the research-compound niche for several years.
Recent community discussions describe the brand as a reliable supplier they prefer for repeat purchases.
TestoPrime
8.2
/ 10
★★★★☆
The company publishes its ingredients and individual dosages rather than hiding them behind a proprietary blend.
Available directly through TestoPrime and Amazon, giving customers flexibility in purchasing and fulfillment.
Offers a 60-day refund policy for customers who aren't satisfied.
8.0
/ 10
★★★★☆
Publicly publishes third-party analytical results rather than simply making internal purity claims.
Orders are generally processed within 24–48 hours, with typical domestic delivery of 2–5 business days.
Tests identity, raw-material purity, and finished-solution concentration.
8.0
/ 10
★★★★☆
Damaged, missing, or incorrect products can qualify for free reshipment when photographic evidence is provided promptly.
Orders are provided with tracking information, making shipments easier to monitor.
Loyalty program exists for repeat and long-term customers.
We buy anonymously and pay for our own testing, and our scores are not for sale. Brand pages carry affiliate links: if you buy through one we may earn a commission, at no cost to you.
