Reviewed by Jack Ryan, co-founder & editorial lead · Updated
COA practices 40%9.5/10
Reputation 20%8/10
Transparency 20%7/10
Operations 20%9/10
The four factors average 8.6 by weight, which rounds to 8.5/10.
Direct answer
Is Silverstone Labs Co legit?
Yes. We rate Silverstone Labs Co 8.5/10. Its strongest evidence is a sustained batch-testing program across ten active months, with 48 issuer-matched report sets and broad coverage of its current single-vial catalog. Compound purity is 99.092%–99.97%, and 24 reports add both heavy-metal analysis and PCR microbial screening. Customer feedback is positive, with a 4.4/5 TrustScore from ten reviews.
COA evidenceCOA quality 9.5/10✓COA verified49 report sets from Freedom Diagnostics (23), ILS Laboratories (19) and Kovera Labs (7). All 48 compound sets cover identity, purity, content and endotoxin; 24 add metals and PCR microbial screening, and 11 include fentanyl screening. The water set covers benzyl alcohol, pH and endotoxin.Repeated batch testing across ten active months. Exact compound and nominal-strength evidence for all 27 eligible single-vial offers.
Purity: 99.092%–99.97% across 48 compound reports. None is below 98%. One water report is separate.
48 issuer matches. One MOTS-c 10 mg report is file checked. Twenty-six current offers have issuer-matched evidence; one uses View COA.
Silverstone has built a consistent testing record across ten active months. The archive contains 49 distinct report sets from December 20, 2025 through October 3, 2026, comprising 23 Freedom Diagnostics, 19 ILS Laboratories and seven Kovera Labs sets. The 48 compound reports cover identity, purity, measured content and endotoxin. Twenty-four add both ICP-MS heavy-metal analysis and PCR microbial screening, and eleven include fentanyl screening. A separate bacteriostatic-water report measures benzyl alcohol, pH and endotoxin.
02
Testing over time
The history shows repeated testing rather than a single launch batch. GHK-Cu 50 mg appears in January and August, GLOW in January and April, KLOW in March and May, and Tesamorelin 10 mg in January and May. Newer September reports cover GHK-Cu 100 mg, Wolverine+ and Metabolic Blend. October adds KPV and Wolverine 20 mg. There are four sets in December, three in January, nine in March, six in April, eight in May, eight in June, one in July, five in August, three in September and two in October. This is the observed testing history, with no February report in the retained archive.
03
Purity and representative results
Compound purity spans 99.092%–99.97% across 48 reports, with none below 98%. BPC-157 5 mg measures 5.34 mg at 99.092% purity. GHK-Cu 100 mg measures 108.94 mg at 99.83%, and KPV 10 mg measures 12.52 mg at 99.90%. The September GHK-Cu and October KPV reports add passing endotoxin, PCR microbial and heavy-metal results. ILS reports preserve individual elemental results and their limits, while the Kovera reports pair HPLC purity with mass-spectrometry identity and endotoxin screening. PCR is the microbial method shown on the extended reports.
04
Current product coverage
Forty-eight report sets match specific official laboratory records. One complete MOTS-c 10 mg merchant report remains available with a file-checked label because its specific Freedom Diagnostics PDF was unavailable. The eligible catalog has 27 single-vial offers, all with a matching compound and nominal strength in the retained archive. Twenty-six have issuer-matched evidence, and MOTS-c 10 mg uses its neutral View COA control. Historical batches remain available beside newer reports.
05
Reviews
Trustpilot shows a 4.4/5 TrustScore from ten reviews, all rated five stars. Reviewers repeatedly describe fast delivery, careful packaging and responsive help. Rod Foster describes reaching a person by phone in the evening to correct an order. Jason S reports a reply within about an hour and clearly labelled packaging. A September reviewer asks for a clearer explanation of reward points, and Silverstone replies that it has added a guide. The feedback is consistently positive across this small customer sample.
06
Company transparency
Silverstone publishes batch documents, support email addresses, a telephone number and detailed ordering policies. The domain was registered on December 8, 2025, twelve days before the first retained laboratory reports. The storefront uses the Silverstone Labs Co name and a Silverstone Wellness footer. Its public pages do not identify a legal entity, individual owner or street address.
07
Ordering and delivery
Silverstone ships within the United States. Paid weekday orders received before 3 PM Central typically ship the same day. Ground shipping is $10 with a 3–5-business-day estimate, 2-Day Air is $15 and next-day shipping is $40. Orders of $179 or more qualify for free shipping, calculated after discounts. Cards are paid through a secure payment link, with Visa, Mastercard and American Express shown at checkout; Zelle and Venmo are also listed. The sales policy requires damaged or incorrect items to be reported within 48 hours.
Details
Payment methods
Visa
Mastercard
American Express
Zelle
Venmo
Shipping
Silverstone ships within the United States. Paid weekday orders received before 3 PM Central typically ship the same day. Ground shipping is $10 with a 3–5-business-day estimate, 2-Day Air is $15 and next-day shipping is $40. Orders of $179 or more qualify for free shipping, calculated after discounts. Cards are paid through a secure payment link, with Visa, Mastercard and American Express shown at checkout; Zelle and Venmo are also listed. The sales policy requires damaged or incorrect items to be reported within 48 hours.
In stock
27 products
Ships to
United States only
Prices checked
Products (27)
27 products
Peptide
Price
Package
Stock
BPC-1574-test panel✓ COA verified Freedom Diagnostics
Top 5 of 11 vendors that reached the cheapest five
Frequently asked questions
Is Silverstone Labs Co legit?
Yes. We rate Silverstone Labs Co 8.5/10. Its strongest evidence is a sustained batch-testing program across ten active months, with 48 issuer-matched report sets and broad coverage of its current single-vial catalog. Compound purity is 99.092%–99.97%, and 24 reports add both heavy-metal analysis and PCR microbial screening. Customer feedback is positive, with a 4.4/5 TrustScore from ten reviews. Affiliate links never affect the score.
Where does Silverstone Labs Co ship?
Silverstone Labs Co ships to United States only. Silverstone ships within the United States. Paid weekday orders received before 3 PM Central typically ship the same day. Ground shipping is $10 with a 3–5-business-day estimate, 2-Day Air is $15 and next-day shipping is $40. Orders of $179 or more qualify for free shipping, calculated after discounts. Cards are paid through a secure payment link, with Visa, Mastercard and American Express shown at checkout; Zelle and Venmo are also listed. The sales policy requires damaged or incorrect items to be reported within 48 hours.
Does Silverstone Labs Co publish COAs?
COA verified. 48 issuer matches. One MOTS-c 10 mg report is file checked. Twenty-six current offers have issuer-matched evidence; one uses View COA.
What do customer reviews say about Silverstone Labs Co?
Trustpilot showed 4.4/5 from 10 reviews of this store when we last checked. Reviews describe service and delivery, not lab results.
