True Science Peptides Review: Vanguard Laboratory COAs, Lot Codes and Refund Terms

True Science Peptides is a research peptide store with a listed street address in Irvine, California. It sells about 28 catalog listings of freeze-dried peptides and related research compounds, sorted into groups such as bioregulators, copper peptides, IGF-1 proteins and blends.

The site names its testing lab, Vanguard Laboratory, and links a report from each product page, which puts it ahead of stores that only claim outside testing. This review looks at what those reports actually contain, how the store labels its products, and what its shipping and refund terms promise.

What True Science Peptides Sells and How the Catalog Is Organized

The catalog runs across three pages and about 28 listings, from single compounds such as Tesamorelin, Thymosin Beta-4 Acetate and IGF-1 LR3 to multi-compound blends. Several items are listed under research codes rather than common names. Prices run from about $45 to $325, depending on the compound and vial size.

The company describes itself as a research supplier, not a compounding pharmacy, and says its products come from partners certified to GMP and ISO standards. The homepage says products are manufactured in the USA, while the company page refers to certified partners, so the exact manufacturing arrangement is not spelled out. No founding year is given.

Testing and Certificates: What the Vanguard Laboratory Reports Show

Each product page states purity of 99% or higher, credits Vanguard Laboratories with HPLC and mass spec verification, and links a certificate. The linked PDFs come from Vanguard Laboratory in Olympia, Washington, list True Science Peptides as the client and carry an A2LA certificate number. Two reports were reviewed:

• IGF-1 LR3, lot TSP-IGF1-Q2, reported August 7, 2025: 99.68% HPLC purity and 1.03 mg measured in a vial labeled 1 mg
• NAD+, lot TSP-NAD500-W3, reported August 15, 2025: chromatographic purity figures and 623 mg measured against a 500 mg label

Neither report shows mass spec results, so the site's identity claim is not backed by the reports seen. Lot codes appear on the reports but not on the product pages, which makes it harder to confirm that a report matches the stock on sale. The Tesamorelin page also linked the NAD+ report rather than a Tesamorelin one. Buyers should ask for the report that matches their vial's lot before relying on it.

Research-Use Labeling and Purchase Checks

Research-use-only language is repeated across the site: in banners, on product pages, on a disclaimer page and in the terms. The store states that its products are not for human or veterinary use and have not been evaluated by the FDA.

Some product descriptions, however, make claims about what the compounds do. That content falls short of strict research-use labeling, so labeling is marked partial here.

The terms, governed by Nevada law, set a 21+ age requirement and ask buyers to confirm they are qualified to handle research materials. No age gate on entry or prompt at checkout was seen in the site content reviewed.

Ordering, Shipping and Handling in Transit

Payment methods are not listed on the public pages, so buyers only see the options at checkout. The shipping policy says orders are processed within three business days and sent by USPS, UPS or FedEx, with tracking emailed on dispatch. Rates are calculated at checkout.

The same policy says orders typically arrive in about two to three weeks and asks buyers to get in touch if nothing arrives after four weeks. That sits oddly beside a site banner advertising overnight shipping and a homepage line about temperature-controlled shipping in the US, so it is worth asking support which service applies before ordering. Some destinations are excluded, but the policy does not list them.

Refunds, Replacements and Support

The refund policy, dated January 2026, is one of the clearer parts of the site. Refunds or replacements are offered for damaged, defective or incorrect items reported within 48 hours of delivery with photos, and for parcels the carrier confirms as lost. Approved claims receive a return authorization, and refunds go back to the original payment method within five to ten business days.

Change of mind, opened products, handling problems after delivery and wrong addresses are excluded, and shipping fees are refunded only when the store made the error. Support is by email, phone and a contact form, though the contact page and footer list different phone numbers.

Verdict: Named Lab, Thinner Batch Matching

True Science Peptides suits labs that want a named, accredited testing lab and a written refund process. The paperwork is real but incomplete: the reports seen are more than a year old, show no mass spec data and are not tied to lot numbers on the product pages.

Before ordering, check:

• that the linked report names the same compound you are buying
• the lot number on the vial against the lot on the report
• whether a newer report or mass spec data is available on request
• which shipping service and transit time apply to your order