Research-context information only. Both BPC-157 and TB-500 are research peptides not approved by the FDA. Both are on the FDA 503A bulks Category 2 list (2023). Protocols, doses, and reactions reported below come from published research and self-reported community sources. This article reports what has been documented, not what should be done. Consult a licensed physician for personal medical decisions.
The buying problem is per-component verification — vendors must test BPC-157 (1,419.5 Da) and TB-500 (4,963 Da) independently to confirm both peptides actually shipped at labeled mass. Vendors that publish only "blend purity" without separate certificates have failed basic disclosure.
This guide covers documented per-mg pricing, blend COA verification, ratio selection, and red flags. For dosing context, see the Wolverine stack dosing guide.
The blend ships as a single lyophilized vial containing both peptides at a fixed ratio. Most vendors offer 10mg + 10mg (20mg total) as the standard size, with 5mg + 5mg (10mg total) as a smaller option. Three factors drive price: total mg in the vial, vendor markup, and whether the COA verifies both compounds separately.
Current Market Pricing (2026)
Vial Size
Typical Price Range
Price Per Total mg
Best For
10mg blend (5+5)
$50-90
$5-9/mg
Tolerance testing, short cycles
20mg blend (10+10)
$80-160
$4-8/mg
Standard 8-12 week cycles — best all-around
30mg blend (15+15)
$130-230
$4.30-7.70/mg
Extended cycles
20mg × 5 (kit)
$360-700
$3.60-7/mg
Long protocols
The pattern: 20mg blends are the most-cited size in vendor sales data. Per-total-mg cost is typically 30-40% cheaper than buying BPC-157 and TB-500 separately.
Cheapest single-vial option: Glacier Aminos's 10% off drops the 20mg vial to $54.89 ($2.74/mg effective) — the lowest effective price we track for buying one vial. Get the code →
How to Verify BPC-157/TB-500 Blend Quality
A blend COA is harder to verify than a single-peptide COA because each peptide must be tested independently. The most common counterfeit pattern documented in community discussions: vendors substitute a smaller fragment for TB-500 (which costs more to synthesize at 43 residues) while keeping real BPC-157 in the vial.
What a Blend COA Should Include
Identity Confirmation — Both Peptides
Mass spectrometry confirming BPC-157 at 1,419.5 Da
Mass spectrometry confirming TB-500 (Tβ4) at 4,963 Da
Per-peptide amino acid sequence verification
Purity Testing — Both Peptides
HPLC purity at 98%+ for each peptide individually
Two HPLC chromatograms (one per peptide), each showing a single dominant peak
Water content (Karl Fischer) under 8%
Contamination Testing
Endotoxin levels
Residual solvent analysis
Heavy metals screening
How to Verify a Blend COA Is Legitimate
Two separate test reports — Per-peptide HPLC and mass spec, not a combined chromatogram.
Both BPC-157 and TB-500 reconstituted with bacteriostatic water and refrigerated are documented stable for roughly 28 days in published peptide-stability literature. With sterile water (no preservative), the window collapses to ~24 hours.
Practical implication: A 20mg blend at 500mcg+500mcg/day fits the 28-day window cleanly. At lower doses (250mcg+250mcg/day), the 20mg vial exceeds the window — staged reconstitution or smaller 10mg vials are commonly used.
Vial Size by Protocol
Tolerance testing context:
A 10mg blend vial (5mg + 5mg) is the smallest unit cited
10-20 days at standard doses
Standard 250+250 mcg/day community loading:
20mg blend vial with staged reconstitution at lower doses
Or 10mg blend vial for the first 20 days
1-2 vials per month
Loading then maintenance (500mcg+500mcg loading, then 250mcg+250mcg maintenance):
20mg blend during 4-week loading phase (covers 20 days at full loading)
Then 1× 20mg vial covers ~40 days of maintenance
Buying Multiple Smaller vs Kit
Factor
Multiple 20mg Singles
Kit (5× 20mg)
Cost per total mg
Higher ($4-8/mg)
Lower ($3.60-7/mg)
Freshness
Same (lyophilized storage)
Same
Flexibility
Can stop mid-cycle
Committed to full kit
Storage
Easier (smaller volumes)
Requires fridge space
Shipping
More frequent orders
Single shipment
Common community pattern: 1-2× 20mg singles to validate source and assess loading phase, with kit purchases reserved for confirmed responders running 12+ week cycles.
Why the Blend Costs Less Than Buying Singles
A common question: how does a 20mg blend save 30-40% over buying 10mg BPC-157 + 10mg TB-500 separately? Three reasons:
1. Synthesis efficiency. TB-500 is the more expensive component (43 residues at $5-8/mg). Vendors batching TB-500 synthesis with BPC-157 capture economies of scale.
2. Single-vial packaging. One vial, one sterile fill, one COA cycle (sort of) is cheaper than two vials. Some vendors pass that savings to buyers.
3. Marketing — the blend is a higher-volume product. BPC-157/TB-500 is one of the top-selling research-peptide blends. Vendors compete on per-blend pricing more aggressively than on single-peptide pricing.
When a "20mg blend" is paid for at premium prices but mass spec doesn't show full TB-500 (4,963 Da), the buyer paid for a TB-4 fragment that synthesizes at 1/3 the cost. The COA is the mechanism that surfaces this.
Vendor Evaluation Methodology
When comparing BPC-157/TB-500 blend vendors:
Price Competitiveness (40%)
Normalize to cost per total milligram. 20mg blend at $100 ($5/mg) scores higher than 10mg blend at $70 ($7/mg).
COA & Testing (30%)
Per-peptide reports (separate mass spec and HPLC for BPC-157 and TB-500)
Third-party labs (Janoshik, MZ Biolabs, Colmaric)
Recent (within 6 months)
Verifiable task number
Both molecular weights confirmed
Reputation (30%)
Community feedback, shipping reliability, customer service, multi-year track record.
Shipping and Storage
Order Arrival
Lyophilized blend typically arrives as a single white or off-white powder cake:
Vial integrity — no cracks, intact rubber seal, aluminum cap secure
Powder appearance — solid cake or loose powder, NOT liquid or discolored
Labeling — batch/lot, total mg content, ratio (e.g., "10mg + 10mg"), "for research use only"
Cold pack — most reputable vendors include cold packs in summer
Storage Guidelines
State
Temperature
Duration
Lyophilized (powder)
Room temp
Days only (shipping)
Lyophilized (powder)
Refrigerated (2-8°C)
12+ months
Lyophilized (powder)
Frozen (-20°C)
24+ months
Reconstituted (BAC water)
Refrigerated (2-8°C)
~28 days
Reconstituted (sterile water)
Refrigerated (2-8°C)
~24 hours
Reconstituted
Frozen
Not generally recommended
Where to Buy
1
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Frequently Asked Questions
Is BPC-157/TB-500 blend legal to buy?
Both peptides are sold as research chemicals labeled 'not for human consumption.' Neither is FDA-approved. As of 2023, BPC-157 is on the FDA 503A bulks Category 2 list, meaning compounding pharmacies cannot legally produce it. Purchasing research peptides is legal in most US jurisdictions.
How much does BPC-157/TB-500 blend cost per cycle?
A 20mg blend vial (10mg BPC-157 + 10mg TB-500) typically runs $80-160. At the standard community protocol of 250mcg of each peptide daily (loading) then maintenance, one vial lasts roughly 4-6 weeks. A 12-week cycle runs $160-320 in vials.
Is the blend cheaper than buying BPC-157 and TB-500 separately?
Yes, by roughly 30-40%. A 10mg BPC-157 vial runs $40-65 and a 10mg TB-500 vial runs $50-75 — roughly $90-140 total. A 20mg blend with the same mass runs $80-130. You also reduce two reconstitutions to one and one injection per dose instead of two.
What ratio is in a BPC-157/TB-500 blend?
Almost all vendors ship a 1:1 ratio (10mg + 10mg or 5mg + 5mg). Some boutique vendors sell 2:1 BPC:TB-500 favoring BPC-157 (which is typically dosed daily) — verify the ratio on the COA before buying.
What purity should I look for in a BPC-157/TB-500 blend?
Demand a per-component HPLC COA showing 98%+ purity for each peptide individually. A single 'blend purity' number is insufficient. Mass spec should confirm 1,419.5 Da (BPC-157) and 4,963 Da (TB-500/Tβ4).
Can I buy BPC-157/TB-500 blend from a pharmacy?
No. BPC-157 is on the FDA 503A Category 2 list — compounding pharmacies cannot legally produce it. TB-500 (thymosin beta-4) was also placed on the Category 2 list. Research vendors are the only documented commercial source.
This article is for educational and informational purposes only. It is not medical advice and should not be used to diagnose, treat, or prevent any condition. Consult a licensed healthcare provider before using any peptide.
