S4 Capsules Price Comparison — Verified Vendors & Lab-Tested COAs
Compare S4 capsule prices across verified research vendors — capsule count, mg per capsule, cost per capsule, and third-party COA results so you can buy the best-value S4 capsules.
Compare the real cost per mg of S4 Capsules across verified research vendors — every listing shows the current discount code and links straight to independent lab COAs, so you get the best-value source without overpaying or risking unverified product.
What S4 Capsules Costs Right Now
WPA currently tracks S4 Capsules from 2 distinct vendors. In-stock S4 Capsules bottles run from $59.36 to $62.99 — a 1.1x spread for the same compound. Swiss Chems holds the lowest sticker price at $59.36. Normalized to milligrams, S4 Capsules costs $0.040/mg to $0.042/mg on this page. The best per-milligram value is the 1500mg bottle from Swiss Chems.
S4 Capsules is stocked in a single size: 1500mg bottles. Because bottles of different strengths rarely scale linearly in price, the per-milligram column is the only fair way to rank them.
Ranked by true cost per milligram, the S4 Capsules listings WPA tracks are: Swiss Chems — 1500mg at $59.36 ($0.040/mg); Modified Aminos — 1500mg at $62.99 ($0.042/mg), COA purity 99.80%.
S4 Capsules COA Coverage Across Tracked Vendors
1 of the 2 tracked S4 Capsules listings (50%) are marked as having COA availability in WPA's listing data; this marker is not independent verification. A purity value is recorded for 1 listing; purity alone does not establish identity or independent testing. The recorded purity value is 99.80%. The latest COA date recorded in WPA's listing data is 2/26.
To assess a COA, inspect the actual report for the independent lab, test date, and a batch and bottle size matching the S4 Capsules offer. WPA's listing fields do not establish that a report was independently verified.
S4 Capsules Discount Codes
2 of the 2 tracked S4 Capsules listings carry a WPA researcher discount code. The largest live discount is 10% off. Every price and per-milligram figure on this page is the post-discount number, so you are never comparing a discounted listing against an undiscounted one. Codes change and some exclude sale items or carry order minimums.
About S4
S4 (andarine) is a first-generation SARM — a small molecule, not a peptide — sourced in research for muscle and bone studies. It is sold as a research chemical (capsules or an oral liquid).
Its reported half-life is ~4 hours (pre-clinical estimate), which is the main reason the community cadence above looks the way it does. Not FDA-approved.
How to Read the S4 Capsules Comparison
- Price per milligram — Every S4 Capsules listing is normalized to $0.040/mg-style unit pricing, so a small cheap bottle cannot hide a worse real cost than a larger one.
- COA metadata and purity — 1 S4 Capsules listing is marked for COA availability, and 1 has a recorded purity value. These fields do not independently verify a report.
- Stock status — Live in-stock state for each S4 Capsules listing, refreshed on a recurring basis.
Reading S4 Capsule Listings
Capsule listings are ranked on total S4 per bottle — capsule count multiplied by milligrams per capsule — rather than on bottle price, because a cheaper bottle with fewer or weaker capsules routinely costs more per milligram. A capsule COA should test the finished capsule rather than the raw powder, and it should cover the exact capsule strength on sale.
Oral capsule formats differ from injectable vials in route of administration and bioavailability, so a S4 protocol written for one format does not transfer to the other. Confirm the vendor's COA covers the capsule product specifically.