Optimum Formula reviews
Optimum Formula at a glance
- PepFinder Score
- 6.2/10
- Based in
- United States
- Products tracked
- 25 across 20 peptides
- Price level
- Around 27% below the US market median
- Verified store
- Not yet
- Online for
- About 1 year
- Last checked
- 8 Nov 2026
PepFinder currently tracks 25 products from Optimum Formula across 20 peptides. Its listed prices per mg are around 27% below the US market median, across 3 listings we could compare. The cheapest listing we track is US$29.99. PepFinder last read its listings on 8 Nov 2026.
PepFinder rating
Out of 10
Customer rating
No customer reviews yet
Own this business? Claim this profile — free; reply to reviews and keep your details current.
Best for: Large product selection
- Large range with 25 listed products
- Accepts card payments, which carry chargeback protection
- Delivery times not yet confirmed
How its prices compare · 3 listings checked against the market
We may earn a commission. How this works
Optimum Formula review: what we found
Last checked 8 Nov 2026 · All sources
What PepFinder checked
Observed by our checks or taken from public records
- We read 25 listings across 20 peptides from its website.Details · 8 Nov 2026
- Its comparable prices are 27% below the market median per mg (3 listings compared in the same currency).Details · 8 Nov 2026
- The Internet Archive's earliest capture of optimumformula.co is dated 2025-10-31.Internet Archive: first capture ↗ · 24 Sept 2026
What the store says
The store's own statements, not checked by PepFinder
- The supplier's website links to certificates of analysis or lab results. Documents are not reviewed until an editor checks them.Links a COA / lab results page ↗ · 24 Sept 2026
- Business location: US (as stated on the supplier's website, reviewed by PepFinder)Business location ↗ · 9 Oct 2026
- The website links to its refund policy page.Linked policy page ↗ · 24 Sept 2026
- The website links to its terms page.Linked policy page ↗ · 24 Sept 2026
Not yet known
Gaps in the record, not faults
- Not yet found on its website: shipping destinations, independent testing, stated delivery time, customer support channels.Details
- What ordering is like: no PepFinder customer has reviewed it or reported an order yet.
PepFinder has not bought from or tested this store's products. Request a correction with evidence.
No customer reviews of Optimum Formula yet
Ordered from Optimum Formula? A review or a short report of dispatch, delivery, payment or support helps the next buyer. Reviews are moderated; the store can reply but not remove them.
Rating by category
How we rate- Product selection
- 8.0 / 10
- Value
- 7.6 / 10
- Reliability
- 7.0 / 10
- Delivery
- Not enough data
- Customer service
- 5.0 / 10
- Payment options
- 7.0 / 10
- Review sentiment
- Not enough data
- Testing and traceability
- 2.5 / 10
- Information availability
- Limited
Why does PepFinder say this?
We can show a source for 9 of the 15 facts that matter about a store (who runs it, contact details, shipping, payments, testing, prices). Not yet confirmed: shipping destinations, stated delivery time, customer support channels, independent testing, testing laboratory, public batch numbers. “Not confirmed” means we have not found it, not that the answer is no. See sources.
Popular products
Checked 8 Nov 2026| Product | Supplier price |
|---|---|
| US$34.99 — | |
| US$39.99 US$8.00/mg 27% below average | |
| US$34.99 — | |
| US$79.99 — | |
| US$69.99 — | |
| US$34.99 — |
We may earn a commission. How this works
Prices as listed by the supplier when we last checked; the supplier confirms the final price. “vs market” compares price per mg with the median across tracked suppliers listing the same peptide in the same currency and serving this store's region, never converted.
How its prices compare
Optimum Formula lists in USD. We compared 3 of its 25 listings with the median price per mg across the other stores that list the same peptide in USD and serve the US (104 to 150 stores per product). Prices are never converted between currencies, so this is a like-for-like comparison for a buyer in the US.
Taken together, its typical listing sits around 27% below that market median. Behind that: 3 products priced below most stores, 0 within 5% of the median, and 0 products priced above most stores.
Priced below most stores (3)
| Product | Price | vs market median |
|---|---|---|
| KPV 10mg | US$34.99 | 30% below |
| Cagrilintide 5mg | US$39.99 | 27% below |
| DSIP 5mg | US$29.99 | 12% below |
Price per mg lets vials of different sizes be compared. A higher price can reflect a smaller vial, included shipping, or testing the store pays for; the per-peptide price pages show every store side by side. Prices are as the store listed them when we last checked.
Pros and things to consider
Pros
- Large range with 25 listed products
- Accepts card payments, which carry chargeback protection
- Refund or returns policy published
Things to consider
- Delivery times not yet confirmed
- Has not completed PepFinder verification (most suppliers have not)
From PepFinder's own checks of the supplier's website and public records. “Not confirmed” means we have not found it yet. Request a correction.
About Optimum Formula
Who they are and what they sell
Optimum Formula is based in the United States. It lists 25 products across 20 peptides. Shipping countries are not stated. It accepts Cryptocurrency and Card. Its PepFinder Score is 6.2 out of 10. It has no customer reviews on PepFinder yet. PepFinder last read its website on 8 Nov 2026.
Optimum Formula is a research-peptide store based in United States. We track 25 of its listings across 20 peptides, including DSIP, Melanotan II, NAD+, Selank, Semax and 5-Amino-1MQ. It has no customer reviews on PepFinder yet.
To see whether Optimum Formula is good value, compare its prices per mg with other stores on DSIP prices in the US, Melanotan II prices in the US and NAD+ prices in the US. The “Is Optimum Formula legit?” checks below cover contact details, payment, delivery and testing. Before a first order, read how to read a peptide COA and compare other suppliers in the US.
Store and verification
Unclaimed · 8 legitimacy checks
Store information
- Trading name
- Optimum Formula
- Location
- United States
- Domain first seen
- 31 Oct 2025
- First tracked by us
- 24 Sept 2026
- Estimated time active
- 1.0 years
- support@optimumformula.co
Is Optimum Formula legit? What we can check
No website can promise that a supplier is trustworthy. These are the checks we can make from public records, the supplier’s own website and our reviews. They are the same checks as in our guide to spotting an unreliable supplier.
Website history (Not known)
Domain first seen between one and two years ago.
Ways to get in touch (Not known)
Contact channels not yet recorded.
Written policies (In place)
Refund policy and terms published.
Independent testing (Not known)
Optimum Formula links a certificates-of-analysis or lab-results page. PepFinder has not yet collected or reviewed any of its certificates, so this is the supplier's own claim.
PepFinder verification (Not known)
Not verified. Most suppliers are not; verification is voluntary.
Regulator notices and warnings (In place)
None found in our records.
Card payments (In place)
Card payment shown on the website, which usually allows a chargeback if an order goes wrong.
Customer reviews (Not known)
No reviews on PepFinder yet.
Own this business? Claim this profile — free; reply to reviews and keep your details current.
Shipping and payments
2 payment methods
Testing and certificates of analysis
Optimum Formula links a certificates-of-analysis or lab-results page. PepFinder has not yet collected or reviewed any of its certificates, so this is the supplier's own claim.
Testing transparency
- Certificates of analysis
- Testing claimed, not reviewedSupplier claims
Optimum Formula links a certificates-of-analysis or lab-results page. PepFinder has not yet collected or reviewed any of its certificates, so this is the supplier's own claim.
- Batch-specific COAs
- Not yet assessed
- States third-party testing
- Not yet assessed
- Laboratories named by the supplier
- None found
- Lab accreditation identifiable
- Not yet assessed
- Batch numbers public
- Not yet assessed
- Manufacturing/source location disclosed
- Not yet assessed
- Testing documents we hold
- None yet
We record what testing documents state and where they came from. We do not test products, and a certificate is not evidence that a product is safe for any use.
Full catalogue (25 products)
Every listing we track, with search, price per mg and price history
Listed catalogue and prices
25 products · last checked 8 Nov 2026| Product (as listed) | Price | Per mg | Stock |
|---|---|---|---|
| US$34.99 As listed | — | ||
| US$79.99 As listed | — | ||
| US$39.99 As listed | — | ||
| US$39.99 5mg | US$8.00 | ||
| US$29.99 5mg | US$6.00 | ||
| US$69.99 As listed | — | ||
| US$69.99 As listed | — | ||
| US$69.99 As listed | — | ||
| US$49.99 As listed | — | ||
| US$34.99 10mg | US$3.50 | ||
| US$39.99 As listed | — | ||
| US$39.99 As listed | — | ||
| US$69.99 As listed | — | ||
| US$29.99 As listed | — | ||
| US$69.99 As listed | — | ||
| US$44.99 As listed | — | ||
| US$69.99 As listed | — | ||
| US$69.99 As listed | — | ||
| US$79.99 As listed | — | ||
| US$34.99 As listed | — | ||
| US$39.99 As listed | — | ||
| US$34.99 As listed | — | ||
| US$79.99 As listed | — | ||
| US$79.99 As listed | — | ||
| US$44.99 As listed | — |
The supplier confirms the final price and availability when you order. Product names, photos, quantities and prices are as publicly listed by the supplier; photos load from the supplier’s own website. “vs market” compares price per mg with the median across tracked suppliers listing the same peptide in the same currency; prices are never converted between currencies. We do not sell these products and give no guidance on their use.
Sources and evidence
Where each fact came from · information availability: limited
Evidence Coverage: 53%
What we know about this supplier, and whether we can show you where it came from. “Not known” means we have not found it, not that the answer is no.
| Fact | Status | Last observed |
|---|---|---|
| Business location | Known, sourced | 30 days ago |
| Contact details | Known, no source shown | — |
| Shipping destinations | Not known | — |
| Stated delivery time | Not known | — |
| Payment methods | Known, no source shown | — |
| Customer support channels | Not known | — |
| Refund or returns policy | Known, sourced | 46 days ago |
| Terms of sale | Known, sourced | 46 days ago |
| Domain age | Known, sourced | 45 days ago |
| Certificates of analysis | Known, sourced | 46 days ago |
| Independent testing | Not known | — |
| Testing laboratory | Not known | — |
| Public batch numbers | Not known | — |
| Product catalogue | Known, sourced | 15 hours ago |
| Prices | Known, sourced3 of 25 listed prices can be compared per mg | 15 hours ago |
Evidence and sources
| Topic | Claim | Basis | Source type | Captured | Last checked | Source |
|---|---|---|---|---|---|---|
| Shipping policy | Business location: US (as stated on the supplier's website, reviewed by PepFinder) | Supplier-stated | Supplier website | 1 Oct 2026 | 30 days ago | Business location |
| Domain | The Internet Archive's earliest capture of optimumformula.co is dated 2025-10-31. | Verified fact | Domain record | 24 Sept 2026 | 45 days ago | Internet Archive: first capture |
| Certificates of analysis | The supplier's website links to certificates of analysis or lab results. Documents are not reviewed until an editor checks them. | Supplier-stated | Supplier website | 24 Sept 2026 | 46 days ago | Links a COA / lab results page |
| Refund policy | The website links to its refund policy page. | Supplier-stated | Supplier website | 24 Sept 2026 | 46 days ago | Linked policy page |
| Terms | The website links to its terms page. | Supplier-stated | Supplier website | 24 Sept 2026 | 46 days ago | Linked policy page |
| Pricing | 25 peptide listings read from the supplier's own catalogue. Prices and stock are as the site listed them at capture. | Supplier-stated | Supplier website | 24 Sept 2026 | 15 hours ago | Supplier's public product catalogue |
Verified fact: checked by us against an independent source. Supplier-stated: what the supplier says, not independently confirmed. User report: submitted by a user. Editorial assessment: our judgement. Spotted an error? Request a correction.
Supplier history
- 16 Oct 2026ScoreTransparency Score changed from 2.9 to 5.0Integrity pass: validated data changed
- 25 Sept 2026CatalogueNew listing: CJC-1295 No DAC / Ipamorelin
- 25 Sept 2026CatalogueNew listing: Tesofensine
- 25 Sept 2026CatalogueNew listing: Melanotan 2
- 25 Sept 2026CatalogueNew listing: DSIP Atomizer
- 25 Sept 2026CatalogueNew listing: Oxytocin Atomizer
- 25 Sept 2026CatalogueNew listing: Glutathione Atomizer
- 25 Sept 2026CatalogueNew listing: Melanotan 2 Atomizer
- 25 Sept 2026CatalogueNew listing: Pinealon Atomizer
- 25 Sept 2026CatalogueNew listing: NAD+ Atomizer
- 25 Sept 2026CatalogueNew listing: Epitalon Atomizer
- 25 Sept 2026CatalogueNew listing: Adamax Atomizer
- 24 Sept 2026ListingSupplier added to the directoryDiscovered and read from its own website by the ingestion pipeline; approved by an editor. Pending publication review.
How PepFinder rates suppliers
What the rating and the customer rating each measure
The PepFinder rating (out of 10) is our own assessment of a supplier across reliability, product selection, pricing, delivery, customer service, website, payment options, packaging and how much information the supplier makes available. Each part is scored from what we can observe on its website, from public records and from customer reviews; parts we cannot observe are left unscored rather than marked down, and the rating is only shown once enough of them are known. It can move as more of the inputs become available.
The customer rating (out of 5 stars) is simply the average of approved customer reviews, shown from three reviews. Reviews are moderated before publication and suppliers can reply but not remove them.
The price comparison puts each listing's price per milligram against the median across every tracked supplier listing the same peptide in the same currency and serving the same region, so a UK store is measured against stores a UK buyer could order from. Prices are never converted between currencies. Suppliers cannot pay to change any of this; claiming or verifying a profile does not change the rating either.
Transparency Score
Out of 10 · methodology v1 · updated 8 Nov 2026 · 45% of criteria assessed
Testing, documentation and business transparency. Separate from the PepFinder Score. Paid plans and sponsorship cannot change it. How it is calculated
Show every factor
Testing transparency — 2.5
- ◐ Links a certificates-of-analysis page (not yet reviewed by us)12.5/25
- ? COAs are batch-specificnot assessed
- ? States third-party (independent) testingnot assessed
- ✕ Names the testing laboratories0/10
- ? Laboratory accreditation is identifiablenot assessed
- ✕ COAs reviewed by us in the last 12 months0/15
Contact transparency — 10.0
- ✓ Contact details are public15/15
- ? Manufacturing/source location disclosednot assessed
Documentation — 3.4
- ◐ Sourced evidence on record24/40
- ◐ Share of evidence independently verified5/30
- ? Batch numbers are publicnot assessed
- ✕ A testing document checked in the last 6 months0/15
User reviews
No approved reviews yet.
Customer service
Not yet assessed by the editorial team.
Shipping transparency — 0.0
- ? Shipping policy is clearnot assessed
- ✕ Delivery estimate stated0/30
- ✕ Shipping destinations listed0/30
Longevity — 3.6
- ✓ Earliest recorded activity 1.0 years ago
Policy transparency — 6.7
- ? Refund policy is clearnot assessed
- ? Terms of sale are clearnot assessed
- ✓ Refund or returns policy published20/20
- ✓ Terms of sale published20/20
- ✕ Privacy policy published0/20
Compare Optimum Formula with other suppliers
| Supplier | Rating | Customer rating | Prices | Products | |
|---|---|---|---|---|---|
 Ares Research | 7.4 | 1.0(1) | 15% above | 138 | Visit store |
| Disguised Alpha | 7.2 | No reviews yet | 3% below | 105 | Visit store |
 Pure Lab Peptides | 7.1 | No reviews yet | 24% above | 103 | Visit store |
We may earn a commission. How this works
Optimum Formula vs Ares ResearchOptimum Formula vs Disguised AlphaOptimum Formula vs Pure Lab PeptidesAll alternatives to Optimum Formula
Optimum Formula: common questions
Is Optimum Formula legit?
We cannot vouch for any supplier, but we can report what the record shows. Optimum Formula meets 3 of the 8 checks we make, with nothing flagged. Each check, and its source, is listed on this page.
Where is Optimum Formula based?
Our records place Optimum Formula in United States.
Does Optimum Formula publish certificates of analysis?
Optimum Formula links a certificates-of-analysis or lab-results page. PepFinder has not yet collected or reviewed any of its certificates, so this is the supplier's own claim.
What payment methods does Optimum Formula accept?
The website shows: Cryptocurrency, Card.
Ready to shop at Optimum Formula?
- Large range with 25 listed products
- Accepts card payments, which carry chargeback protection
We may earn a commission. How this works
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Something wrong on this page? Request a correction with evidence.
This page provides supplier and market information only and is not medical advice. Disclaimer