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Research peptide

GLP-RT

Retatrutide · research use only

Solas Science GLP-RT 20 mg research vial
99% purity on all compounds

Sourcing you can trust

Independent U.S.A. lab verification on every lot for identity, purity, and concentration — always available to view before purchase.

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Every batch. Every COA. Every time.

Third-party tested

Independent U.S. labs

COA every batch

Scan the QR on any vial

≥99% purity

HPLC-verified identity

Tested & Shipped from the U.S.A.

Fast domestic delivery

THE 500% MATCH GUARANTEE
500%
refunded if it doesn’t match
Don’t trust us. Test us.

Send any Solas vial to an accredited analytical lab. If the compound’s identity is wrong — or its purity comes back more than 1% below its Certificate of Analysis — we refund 500% of what you paid for that item.

Any accredited lab

You choose the third-party tester

If it doesn’t match

Wrong compound, or 1%+ below COA purity

500% refunded

Five times the item price, back to you

60-day window

Claim within 60 days of delivery

We can promise this because every batch is third-party verified before it ever ships.

Choose your vial

Every concentration ships with its own third-party COA — and the same 500% guarantee.

GLP-RT
15 mg
$70
Lyophilized powder · single vial
Add to cart
MOST POPULAR
GLP-RT
20 mg
$90
Lyophilized powder · single vial
Add to cart
GLP-RT
30 mg
$120
Best value per mg
Add to cart

Secure checkout · ships from the U.S.A. · covered by the 500% guarantee

Questions, answered

How do I know the purity is real?
Every batch is tested by an independent third-party lab before it ships. The lab confirms the compound’s identity and measures its purity by HPLC. You don’t have to take our word for it — the report is yours to see, and our 500% Match Guarantee backs every figure on it.
What is a COA, and how do I see mine?
A Certificate of Analysis is the independent lab’s report for one specific batch — it confirms the compound’s identity and states its measured purity. Every Solas vial carries a QR code on the label. Scan it and you’ll see the COA for that exact batch.
Where do orders ship from?
All orders ship from within the United States, with tracking provided. Most orders arrive within 2–5 business days.
What is your return policy?
If an independent lab test shows the compound’s identity is wrong, or its purity is more than 1% below its Certificate of Analysis, the 500% Match Guarantee refunds five times the item price, claimable within 60 days of delivery. If your shipment arrives damaged, contact us within 30 days and we’ll replace the damaged product.
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≥99%Purity
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