Sparta Labs retains an owner-set 5/10 rating. Its US storefront names an LLC and publishes contact, shipping and claim terms, but the public Lab Results page still presents Request COA without original named-lab documents or report IDs. The October 3 exact-domain Trustpilot profile has 4.1/5 from nine reviews, including replacement/delivery praise and a buyer’s unresolved testing/batch-label allegation. That account supplies no independent laboratory file.
Evidence summary
Sparta Labs COAs and evidence
Sparta Labs earns 5/10 from COA practices 3.5, reputation 2, transparency 6.5, and operations 9. Public company, contact, shipping, and refund information support the strong operations score.
The 5/10 owner rating remains cautious because original named-lab batch files are not exposed on the public Lab Results route. The nine-post Trustpilot record supplies service praise and an unresolved batch-label/testing allegation, distinct from laboratory verification.
01
Evidence note
Sparta Labs identifies Sparta Labs, LLC and publishes 3812 W Montague Ave, North Charleston, South Carolina 29418, info@spartalabs.net, and daily support hours. The site restricts sales to research-use-only customers who are at least 21 years old.
02
Evidence note
The storefront has 36 product pages. PeptidePrices currently lists 68 single-vial offers. Product links lead to the exact items being compared, and code SL5MSNFF gives 15% off.
03
Evidence note
Sparta states that every batch has a third-party COA, meets a 99% purity standard, and is protected by a 30-day lab-verified guarantee. The reviewed public Lab Results page did not expose the promised original certificates, a named lab, report IDs, or a lookup. The page offered a Request COA path instead. PeptidePrices treats these as vendor claims until the underlying batch documents can be checked.
04
Evidence note
The shipping policy states US-only service, typical dispatch within one business day, a 4 PM Eastern Monday-Saturday target, and FedEx or USPS delivery estimates of two to five business days after dispatch. The site lists card, wallet, and crypto payment support. Its vendor-hosted 5.0/1,000+ review display remains separate from the independently readable nine-post Trustpilot profile.
05
Evidence note
The exact-domain Trustpilot profile showed 4.1/5 from nine reviews on October 3: eight five-star and one one-star. September 19 feedback praises delivery, COA availability and resolved concerns; August 27 feedback describes prompt replacement of damaged goods. A September 16 buyer alleges a testing concern, missing lot number and no meaningful response to an exchange request. The post exposes no underlying assay, so its testing claim remains attributed customer experience. Trustpilot lists a Mount Pleasant address while the storefront publishes North Charleston; each address retains its source. The owner-set reputation factor of 2 and 5/10 overall rating remain.
Strengths
The site identifies Sparta Labs, LLC and publishes a North Charleston street address
The store lists 36 peptide product pages with 68 current single-vial offers
US-only FedEx and USPS shipping terms are detailed and current
The site publishes refund, review-moderation, and research-use policies
Code SL5MSNFF gives 15% off
Product links lead to the exact item being compared
Watch-outs
The reviewed Lab Results page did not expose downloadable certificates
No testing laboratory, issuer report ID, or independent lookup was available on that page
The advertised 5.0/5 from 1,000+ reviews is vendor-hosted and is not counted as independent reputation evidence
The site makes broad batch, purity, sterility, endotoxin, cold-chain, and facility claims that PeptidePrices did not independently verify
PurityVendor states batch-specific third-party testing and a 30-day lab-verified guarantee; the reviewed public lab-results page did not expose the underlying reports
ShippingOrders typically dispatch within one business day, with a 4 PM Eastern Monday-Saturday target. FedEx and USPS estimates are 2–5 business days after dispatch.
Listed package price before coupons, any vial size. This is not the coupon-adjusted lowest 10mg price used to rank the comparison.
Cheapest$12.00
2nd cheapest$21.38
3rd cheapest$24.70
4th cheapest$25.00
5th cheapest$25.08
21 collected days and prices
Cheapest in-stock listing prices by collected day
Date
Cheapest
2nd cheapest
3rd cheapest
4th cheapest
5th cheapest
$12.00
$21.38
$24.70
$25.00
$25.08
$12.00
$21.38
$25.00
$25.08
$26.72
$12.00
$21.38
$25.00
$25.08
$26.72
$12.00
$21.38
$25.00
$26.72
$27.89
$21.38
$26.72
$27.89
$28.80
$29.99
$21.38
$25.00
$26.72
$27.89
$28.00
$17.68
$21.38
$24.98
$25.00
$26.72
$15.75
$21.38
$22.25
$25.00
$26.72
$15.75
$21.38
$22.25
$25.00
$26.72
$15.75
$21.38
$22.25
$25.00
$26.72
$15.75
$20.00
$21.38
$22.25
$25.00
$20.00
$21.38
$23.99
$25.00
$26.72
$20.00
$21.38
$25.00
$26.72
$27.00
$20.00
$21.38
$23.99
$25.00
$26.72
$20.00
$21.38
$25.00
$26.72
$27.00
$20.00
$21.38
$25.00
$26.72
$27.00
$20.00
$21.38
$25.00
$26.72
$27.89
$20.00
$21.38
$25.00
$26.72
$27.89
$20.00
$25.00
$27.89
$28.00
$29.99
$20.00
$25.00
$27.89
$28.00
$29.99
$20.00
$20.00
$25.00
$25.00
$27.89
Vendors most often in the cheapest five
Pure Peptides UK18 days$21.380.0%
Nura Peptide17 days$25.00last seen Oct 5, 20260.0%
Kensington Labs16 days$26.72last seen Oct 9, 20260.0%
VAYN12 days$20.00last seen Sep 30, 20260.0%
CertaPeptides10 days$24.98last seen Oct 4, 2026+58.6%
Novaglo Research8 days$25.00+108.3%
T-Core Biotech8 days$27.89last seen Oct 7, 20260.0%
PeakForce Labs4 days$24.70-8.5%
Top 8 of 13 vendors that reached the cheapest five
Frequently asked questions
Is Sparta Labs legit?
Sparta Labs retains an owner-set 5/10 rating. Its US storefront names an LLC and publishes contact, shipping and claim terms, but the public Lab Results page still presents Request COA without original named-lab documents or report IDs. The October 3 exact-domain Trustpilot profile has 4.1/5 from nine reviews, including replacement/delivery praise and a buyer’s unresolved testing/batch-label allegation. That account supplies no independent laboratory file. Sparta Labs scores 5/10 on PeptidePrices' evidence rubric: 40% COA practices, 20% community reputation, 20% transparency, and 20% operations. Affiliate relationships are disclosed on this page and are not a scoring factor.
Does Sparta Labs have a coupon code?
Code SL5MSNFF gives customers 15% off. Use the PeptidePrices referral link on this page and confirm the discount at checkout.
Where does Sparta Labs ship?
Sparta Labs ships to United States only. Orders typically dispatch within one business day, with a 4 PM Eastern Monday-Saturday target. FedEx and USPS estimates are 2–5 business days after dispatch.
Does Sparta Labs publish COAs?
COA on request. Request the exact product, strength, and lot report from the vendor before relying on it.
What do customer reviews say about Sparta Labs?
Trustpilot showed 4.1/5 from 9 exact-domain reviews during PeptidePrices' latest check. Customer reviews describe service and delivery; they do not verify product identity or laboratory results.