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GYC vs SRY

A head-to-head, evidence-first comparison of GYC and SRY — every number below is sourced from 265 and 390 third-party lab certificates of analysis respectively, not vendor marketing. TitrateLab does not rank or endorse vendors and takes no payment for placement.

GYC

265 COAs tracked

SRY

390 COAs tracked

Leads 3 of 4 metrics

Lab evidence, side by side

Aggregate trust signals from independent certificates. The leader on each row is highlighted. Purity is measured on the specific batches submitted for analysis and is not a guarantee for any other lot.

GYC

SRY

265

Lab certificates tracked More independent COAs = more evidence.

390

98.7%

Average tested purity Mean purity across assayed batches.

99.0%

99%

Batches ≥ 90% purity (pass rate) Share of assayed batches at or above the 90% line.

98%

Distinct compounds tested Breadth of the tested catalog.

Most-tested compounds

The peptides each vendor has the most independent certificates for. Click a compound to see its research hub.

GYC

Tirzepatide91 Retatrutide70 BPC-15712 Cagrilintide11 TB-50010 NAD+8

SRY

Tirzepatide206 Retatrutide57 GHK-Cu20 BPC-15717 TB-50017 Tesamorelin17

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These figures are purity analytics aggregated from independent third-party certificates of analysis, not vendor claims. Purity is measured on the specific batches submitted for analysis and is not a guarantee for any other lot. This is research-use-only information; TitrateLab does not rank or endorse vendors and this is not a recommendation to purchase or use any product.