GLP-3 (Retatrutide)
5.0 out of 5 stars
5.0(1 review)Product information
Compare vendor offers for GLP-3 (Retatrutide), including price, dose, and purity.
Dose size
Chosen on COA purity, third-party testing, and service, no paid placements.
Avg. vendor rating
Third-party tested
COA per batch
Offers in stock
19 of 21COA purity range
99.49–99.991%Ships from
US4 of 4 vendors third-party tested, COA purity 99.49–99.991% across published labs. Prices re-checked 36 days ago.
As seen on
GLP-3 (Retatrutide) Price Comparison
Compare GLP-3 (Retatrutide) prices across every verified vendor and supplier, ranked by price, purity, and buyer-rated trust. Use the tabs to filter by size.
Prices last checked Aug 15
Protide Health
protidehealth.com- Value
- Good
- Price
- $145.00
- Last checked
- 1mo ago
- Rating
- 5.0
- Stock
- In stock
- Purity
- 99.69% COA
- Verified
- Community signal
- Endorsed
- Reddit mentions
- 129
Modern Aminos
modernaminos.com- Value
- Below average
- Price
- $94.00
- Last checked
- 1mo ago
- Rating
- 3.0
- Stock
- In stock
- Purity
- No purity reported
- Verified
- Community signal
- Flagged
- Reddit mentions
- 0
Amino USA
aminousa.com- Value
- Below average
- Price
- $115.00
- Last checked
- 1mo ago
- Rating
- 4.3
- Stock
- In stock
- Purity
- No purity reported
- Verified
- Community signal
- Not endorsed
- Reddit mentions
- 0
Prime Peptides
primepeptides.co- Value
- Below average
- Price
- $120.00
- Last checked
- 1mo ago
- Rating
- 4.6
- Stock
- In stock
- Purity
- No purity reported
- Verified
- Community signal
- Flagged
- Reddit mentions
- 0
Compare GLP-3 (Retatrutide) Vendors
See which vendors and suppliers are trusted for GLP-3 (Retatrutide) — compare price, purity, and buyer trust signals side by side to find the best one to buy from.
Sizes
Overview
- Value
- Good
- Price
- $145.00
- Rating
- 5.0(149)
- Verified
- Community signal
- Endorsed
- Reddit mentions
- 129
Testing & Purity
- Purity
- 99.69% COA
- Testing
- Third-party tested: yesCOA per batch: yesMass spectrometry: yes
Ratings
- Purity accuracy
- 5.0
- Price value
- 4.9
- Shipping speed
- 5.0
- Packaging
- 4.9
- Customer service
- 5.0
Buying
- In stock
- Account required
- Payments
- Card: yesPayment apps: noCrypto: noBank transfer: noOther: no
- Ships to
- United States
- Last checked
- 1mo ago
Sizes
Overview
- Value
- Below average
- Price
- $94.00
- Rating
- 3.0
- Verified
- Community signal
- Flagged
- Reddit mentions
- 0
Testing & Purity
- Purity
- No purity reported
- Testing
- Third-party tested: noCOA per batch: noMass spectrometry: yes
Ratings
- Purity accuracy
- 1.0
- Price value
- 4.0
- Shipping speed
- 4.0
- Packaging
- 2.5
- Customer service
- 4.0
Buying
- In stock
- Account required
- Payments
- Card: yesPayment apps: yesCrypto: yesBank transfer: noOther: no
- Ships to
- United States
- Last checked
- 1mo ago
Sizes
Overview
- Value
- Below average
- Price
- $115.00
- Rating
- 4.3(18)
- Verified
- Community signal
- Not endorsed
- Reddit mentions
- 0
Testing & Purity
- Purity
- No purity reported
- Testing
- Third-party tested: yesCOA per batch: yesMass spectrometry: yes
Ratings
- Purity accuracy
- 4.5
- Price value
- 4.0
- Shipping speed
- 4.2
- Packaging
- 4.3
- Customer service
- 4.1
Buying
- In stock
- Account required
- Payments
- Card: yesPayment apps: noCrypto: yesBank transfer: yesOther: no
- Ships to
- United States
- Last checked
- 1mo ago
Where to buy GLP-3 (Retatrutide) online
We compare GLP-3 (Retatrutide) offers across vetted research vendors so you can buy with confidence. Every price above is pulled from a verified, in-stock listing, so here's what to look for before you check out.
How to tell if a GLP-3 (Retatrutide) vendor is legit
Every GLP-3 (Retatrutide) price shown on this page already passed a fixed vetting process before it was allowed on the comparison table. We don't just list whoever has the lowest price. A vendor can get delisted from every product page on this site for a single unresolved legal or community-trust issue, regardless of how competitive its pricing is. Here's exactly what we check before a vendor's GLP-3 (Retatrutide) offer is allowed to appear:
Certificate of Analysis
We require a third-party COA before a vendor's price is listed. Self-tested-only results are flagged, never hidden.
Legal & community standing
Vendors with active legal issues, unresolved community warnings, or an inactive status are excluded from every price table.
Price, not paid placement
Our "Top Pick" is the lowest price we find from a verified vendor, favoring in-stock offers when one is available. Vendors cannot pay to move up the table.
Checked on a fixed cadence
Every listed price is re-verified on a recurring schedule; the "last checked" date on each row shows exactly when.
Compare vendors on price-per-mg rather than sticker price, and confirm a third-party Certificate of Analysis (COA) is publicly available before you buy. The comparison table above flags self-tested-only results and account-required vendors so you can filter those out first.
Stick to vendors with no unresolved legal issues or community warnings, and check that stock and pricing were verified recently: the "last checked" date on each listing tells you exactly when. Products listed here are intended strictly for laboratory research use.
Is GLP-3 (Retatrutide) legal to buy?
Yes, GLP-3 (Retatrutide) is legal to buy in the United States as a research chemical, and every vendor listed on this page sells it labeled strictly for laboratory research use, not for human consumption. The FDA has not approved GLP-3 (Retatrutide) as a drug, supplement, or cosmetic ingredient, so no vendor can legally market it for use in or on the human body: the "research use only" language on offer listings isn't a loophole, it's the actual legal basis these vendors operate under. That distinction is worth weighing when you compare offers: a vendor that markets GLP-3 (Retatrutide) with dosing instructions, health claims, or "for personal use" language is stepping outside that research-use framework, which is itself a signal alongside price and COA data. Import restrictions and enforcement can vary by state and by carrier, so treat this as a general legal summary, not individualized legal advice, and check your local regulations before ordering. Nothing on this page is medical guidance.
What forms does GLP-3 (Retatrutide) come in?
Like most research peptides, GLP-3 (Retatrutide) is typically sold as a lyophilized (freeze-dried) powder in a sealed glass vial, which needs to be reconstituted with bacteriostatic water before use. Vendors ship it this way because powder is far more stable at room temperature than a pre-mixed liquid, and it keeps longer once reconstituted and refrigerated. Across the vendors listed above, GLP-3 (Retatrutide) comes in 10 dose sizes (5mg, 10mg, 12mg, 15mg, 20mg, 30mg, 40mg, 50mg, 60mg and 100mg), each packaged by the mg. Always confirm the exact vial size and packaging on the vendor's own product page before ordering, since the sizes above reflect what's currently listed for sale.
Typical price range for GLP-3 (Retatrutide)
GLP-3 (Retatrutide) runs $54–$550 across 4 vetted vendors we track, or $5.50–$14.50 per mg. Sticker price alone is a poor way to compare offers, since dose size, purity testing, and vendor markup all move the total independently: price-per-mg is the number that actually lines up across different vial sizes, which is why the comparison table above sorts on it rather than raw price. Expect the low end of that range from smaller doses at less-established vendors and the high end from larger doses, third-party-tested COAs, or vendors with a stronger reputation. A price well below every other listed offer is worth double-checking against that vendor's COA before you buy, not treating as a bargain.
Storing and dosing GLP-3 (Retatrutide)
The essentials to know before your order arrives — see the full guide below for step-by-step reconstitution and a complete dosing calendar.
Storage
Freeze the dry powder, protected from light. Once mixed with liquid, refrigerate and use within about a month, and don't freeze it once mixed.
Reconstitution
A typical 10 mg vial of GLP-3 (Retatrutide) is mixed with 2 mL of bacteriostatic water. Sanitize both vial stoppers with an alcohol swab first, inject the bac water slowly down the inside wall of the vial rather than directly onto the powder, then gently swirl — don't shake — until it fully dissolves.
Typical protocol length
Titrated over 12 weeks to maintenance dose; studied up to 48–68 weeks
How We Rank Offers
We don't just sort by price. Here's how each offer's rating actually gets calculated.
Compared Apples to Apples
We score price per mg against other offers of the same dose size, not the sticker price, so a bigger vial doesn't look like a worse deal than it is.
Price Is Only Part of the Score
We weigh price-per-mg alongside vendor rating, COA purity, and account requirements, so a cheap offer from an unproven vendor won't outrank a fair price from a trusted one.
Trust Gates the Top Ratings
A sub-4.0-rated vendor can't earn "Great value," and missing third-party purity data caps an offer out of "Good" or "Great." No price is low enough to buy around it.
Vendor Trust Signals
We don't sell GLP-3 (Retatrutide) ourselves — every vendor below is vetted and rated independently before being listed here.
Protide Health — 5.0/5 (149 reviews)
Public, third-party tested COAs on every batch, based in US, account required to view pricing.
Amino USA — 4.3/5 (18 reviews)
Public, third-party tested COAs on every batch, based in US, account required to view pricing.
Modern Aminos — 3.0/5
Based in US, account required to view pricing.
GLP-3 (Retatrutide) Buying FAQ
Straight answers on legality, pricing, and vendor vetting before you buy. For research reference only.
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