Last checked
September 11, 2026
Supplier reviews
Public-record reviewAffiliate relationship disclosed
Supplier documentation profile
Ascend Science
Ascend Science publishes a searchable no-login archive with 149 reports across 54 products. Sampled current records connect product and strength to a lot, test date, named laboratory, HPLC purity, LC-MS identity, measured content, heavy-metals, sterility, endotoxin, and fentanyl results. Laboratory accreditation and method scope remain appropriate targets for independent verification.
Affiliate disclosure: We may earn a commission from a qualifying purchase. The relationship does not change this review.
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Documented
10
Supplier-reported
0
Unresolved
1
Contradicted
0
Relationship
Affiliate relationship disclosed
Editorial boundary
Qualified laboratory and in-vitro research context only
Quick assessment
Is Ascend Science worth a closer look?
Start with the supplier site if the catalog fit looks useful, then check the tracked listings and evidence ledger before relying on any specific product claim.
Affiliate link disclosed. Compensation does not change review status, placement, evidence states, or conclusions.
Tracked listings
42
In-stock records
41
Products with 2+ documented fields
42
Discount code
PDD (15% customer discount on every order)
What we could document
10
Review fields connected to directly inspectable public records. Each finding and source basis appears below.
What remains unresolved
1
Fields not directly established by the reviewed records. This does not prove that testing or documentation does not exist.
Tracked catalog
Exact products matched by PDD
42 tracked listings
6/6 fields
6/6 fields
6/6 fields
6/6 fields
6/6 fields
6/6 fields
Showing the first 6 tracked listings. Use the supplier directory filters or peptide comparison pages to review the full catalog coverage.
Procurement details
Business policies not yet documented
PDD has not yet preserved dated, directly reviewable records for this supplier's ship-from location, regions served, processing time, free-shipping threshold, payment methods, or refund and replacement policy. We do not infer those details from a storefront location or checkout availability.
This section will expand into field-level records as eligible supplier policies are documented.
Evidence ledger
What the reviewed records support
Evidence and COA records last reviewed September 11, 2026. Missing documentation remains visible and is not converted into a negative claim.
| Review field | State | Finding and limitation | Basis |
|---|---|---|---|
| Public COA access | Documented | The public archive reports 149 published records across 54 products and exposes current and prior batch information without an account. | COA archive + sampled product records |
| Lot traceability | Documented | Sampled records identify the product, strength, Ascend lot number, labeled quantity, measured quantity, and test date. Physical-vial matching remains a separate receipt-stage check. | BPC-157, AOD-9604, and TB-500 records |
| Laboratory provenance | Documented | The archive names Kovera Labs and ILS Labs as issuing laboratories and states that assays are performed by independent ISO/IEC 17025-accredited facilities. Accreditation and the relevant analytical scopes have not yet been independently confirmed by PDD. | COA archive + sampled product records |
| Chromatographic purity | Documented | Sampled current records publish lot-level HPLC purity values, including 99.48% for BPC-157 lot AS-BPC10-2 and 99.75% for TB-500 lot AS-TB10-2. | Sampled current product records |
| Molecular identity | Documented | Sampled current records separately report LC-MS identity results tied to the named product and lot. Full spectra and acceptance criteria remain useful follow-up records. | Sampled current product records |
| Measured quantity | Documented | Sampled reports distinguish labeled quantity from measured net peptide content, including 10.20 mg for a 10 mg BPC-157 lot and 12.57 mg for a 10 mg TB-500 lot. | Sampled current product records |
| Sterility testing | Documented | Sampled lot records report PCR sterility results as no growth. | Sampled current product records |
| Endotoxin testing | Documented | Sampled lot records report USP <85> endotoxin results below 0.5 EU/mL. | Sampled current product records |
| Contamination testing | Documented | Sampled records include ICP-MS heavy-metals results and a fentanyl screen, both reported as not detected for the reviewed lots. | Sampled current product records |
| Research-use positioning | Documented | The age gate, catalog, and sampled product pages restrict products to in-vitro and laboratory research and exclude human, veterinary, diagnostic, and therapeutic use. | Homepage + catalog + sampled product records |
| Marketing consistency | Unresolved | Strong research-only notices coexist with promotional pricing, handling and reconstitution language, sprays, and consumer-style commerce. PDD does not reproduce those materials and evaluates referral destinations page by page. | Catalog + sampled product pages |
Public COA access
DocumentedThe public archive reports 149 published records across 54 products and exposes current and prior batch information without an account.
Basis: COA archive + sampled product records
Lot traceability
DocumentedSampled records identify the product, strength, Ascend lot number, labeled quantity, measured quantity, and test date. Physical-vial matching remains a separate receipt-stage check.
Basis: BPC-157, AOD-9604, and TB-500 records
Laboratory provenance
DocumentedThe archive names Kovera Labs and ILS Labs as issuing laboratories and states that assays are performed by independent ISO/IEC 17025-accredited facilities. Accreditation and the relevant analytical scopes have not yet been independently confirmed by PDD.
Basis: COA archive + sampled product records
Chromatographic purity
DocumentedSampled current records publish lot-level HPLC purity values, including 99.48% for BPC-157 lot AS-BPC10-2 and 99.75% for TB-500 lot AS-TB10-2.
Basis: Sampled current product records
Molecular identity
DocumentedSampled current records separately report LC-MS identity results tied to the named product and lot. Full spectra and acceptance criteria remain useful follow-up records.
Basis: Sampled current product records
Measured quantity
DocumentedSampled reports distinguish labeled quantity from measured net peptide content, including 10.20 mg for a 10 mg BPC-157 lot and 12.57 mg for a 10 mg TB-500 lot.
Basis: Sampled current product records
Sterility testing
DocumentedSampled lot records report PCR sterility results as no growth.
Basis: Sampled current product records
Endotoxin testing
DocumentedSampled lot records report USP <85> endotoxin results below 0.5 EU/mL.
Basis: Sampled current product records
Contamination testing
DocumentedSampled records include ICP-MS heavy-metals results and a fentanyl screen, both reported as not detected for the reviewed lots.
Basis: Sampled current product records
Research-use positioning
DocumentedThe age gate, catalog, and sampled product pages restrict products to in-vitro and laboratory research and exclude human, veterinary, diagnostic, and therapeutic use.
Basis: Homepage + catalog + sampled product records
Marketing consistency
UnresolvedStrong research-only notices coexist with promotional pricing, handling and reconstitution language, sprays, and consumer-style commerce. PDD does not reproduce those materials and evaluates referral destinations page by page.
Basis: Catalog + sampled product pages
Evidence definitions
Documented
Connected to a directly reviewable public record.
Supplier-reported
Stated by the supplier but not independently confirmed.
Unresolved
The records reviewed do not support a conclusion either way.
Contradicted
Available records or statements materially disagree.
Open verification work
- Independently verify the issuing laboratories, their ISO/IEC 17025 status, and the scopes covering the listed methods.
- Preserve representative signed source reports rather than relying only on the supplier's summarized archive cards.
- Match a current catalog record, archived lot, and physical-vial identifier.
- Review full LC-MS spectra, HPLC chromatograms, methods, and acceptance criteria for representative lots.
- Confirm the referral-attribution or cookie duration and any excluded products in writing.
Public records reviewed
Sources accessed and assessed September 11, 2026. These are research-source links, not commercial referrals.
Limit of review
This profile is not proof of safety, efficacy, sterility, authenticity, regulatory status, or suitability. A result supports only the attribute actually measured.
Affiliate disclosure
This profile contains a paid referral link. Peptide Due Diligence may earn a commission from a qualifying purchase at no additional cost to the purchaser. Compensation does not change evidence states, publication thresholds, placement, or conclusions.
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