Which vendors sell FOXO4-DRI with independent COA testing?

9 vendors in the Merit Verified directory have independent COA evidence on file for FOXO4-DRI — 20 COAs total. COA coverage and test dates are listed on the FOXO4-DRI page at https://meritverified.org/peptides/foxo4-dri.

How do I verify the quality of FOXO4-DRI from a vendor?

To verify FOXO4-DRI quality, look for an independent certificate of analysis (COA) from a third-party lab — not a lab the vendor owns or pays directly. The COA should state the tested compound, lot number, purity percentage (identity and concentration), and the lab's name. Cross-reference the lot number against the vendor's current stock. Merit Verified indexes COAs for FOXO4-DRI at https://meritverified.org/peptides/foxo4-dri so you can compare evidence across vendors before buying.

What is the regulatory status of FOXO4-DRI?

FOXO4-DRI is tracked in the Merit Verified registry. Regulatory status for research peptides in the US has been evolving — the FDA has reclassified a number of peptides out of the 503A compounding ingredient list since 2025. Merit Verified does not provide legal or regulatory advice; check official FDA sources or consult a licensed professional for the current status of FOXO4-DRI in your jurisdiction.

Nootropic / Cognitive

FOXO4-DRI

Also known as: FOXO4-D-Retro-Inverso

FOXO4-DRI is a D-retro-inverso peptide designed to disrupt the FOXO4-p53 interaction in senescent cells. It is studied as a senolytic agent that selectively induces apoptosis in senescent cells while sparing normal cells.

Where to buy · live market data

Who's worth your money for FOXO4-DRI

Every current seller, ranked by independent evidence — Merit Score, latest COA purity, and live $/mg (size-normalized). Prices refresh daily. Rankings are never paid.

Top Merit pick

🇺🇸 Glacier Aminos 99

Highest Merit Score (99) of 6 scored sellers

$13.50/mg

$135 · 10mg · 99.9% purity

1 COA

Buy code MERIT · 10% off

Best value

🇺🇸 Ion Peptide 95

Lowest $/mg among scored sellers

$11.90/mg

$119 · 10mg · 100.0% purity

1 COA

Buy

Most tested

🇺🇸 BioLongevity Labs 96

3 independent COAs on file

$27.50/mg

$275 · 10mg · 99.8% purity

3 COAs

Buy code MERIT · 15% off

Average price

$19.65/mg

range $6.40–$50.00/mg

Sellers

from $75.00

45-day trend

-0.4%

vs 45-day avg $/mg

32 of 36 sellers have a current price· 14 stale hidden· 12 unverified hidden

	Vendor	Price	$/mg	vs avg	Purity	COAs	Merit
🇺🇸	Glacier Aminos ✓ verified at source · 23h ago	$135· 10mg	$13.50/mg	-31.3%	99.9%	1	99	Buy code MERIT · 10% off
🇺🇸	BioLongevity Labs ✓ verified at source · 23h ago	$275· 10mg	$27.50/mg	+39.9%	99.8%	3	96	Buy code MERIT · 15% off
🇺🇸	Ion Peptide ✓ verified at source · 23h ago	$119· 10mg	$11.90/mg	-39.4%	100.0%	1	95	Buy
🇺🇸	Orbitrex Peptides via Disclosed Labs · 23h ago	$200· 10mg	$20.00/mg	+1.8%	—	—	95	Buy code Orbitrex10 · 10% off
🇺🇸	Peptide Tech ✓ verified at source · 23h ago	$150· 10mg	$15.00/mg	-23.7%	99.9%	2	94	Buy
🇺🇸	Verified Peptides via Disclosed Labs · 23h ago	$220· 10mg	$22.00/mg	+11.9%	99.7%	3	86	Buy

Top Merit pick

🇺🇸 Glacier Aminos
✓ verified at source · 23h ago
99

$13.50/mg -31.3% vs avg

$135

10mg

99.9% purity 1 COA

Buy code MERIT · 10% off
🇺🇸 BioLongevity Labs
✓ verified at source · 23h ago
96

$27.50/mg +39.9% vs avg

$275

10mg

99.8% purity 3 COAs

Buy code MERIT · 15% off
🇺🇸 Ion Peptide
✓ verified at source · 23h ago
95

$11.90/mg -39.4% vs avg

$119

10mg

100.0% purity 1 COA

Buy
🇺🇸 Orbitrex Peptides
via Disclosed Labs · 23h ago
95

$20.00/mg +1.8% vs avg

$200

10mg

no purity

Buy code Orbitrex10 · 10% off
🇺🇸 Peptide Tech
✓ verified at source · 23h ago
94

$15.00/mg -23.7% vs avg

$150

10mg

99.9% purity 2 COAs

Buy
🇺🇸 Verified Peptides
via Disclosed Labs · 23h ago
86

$22.00/mg +11.9% vs avg

$220

10mg

99.7% purity 3 COAs

Buy

Prices observed from public storefronts (last 24h), normalized to $/mg. "Evidence" is Merit's 0–100 Merit Score, derived only from observable verification evidence (methodology on /about); "Purity" is the latest independent COA. Some buy links are affiliate links — Merit may earn a commission at no extra cost to you, and where a vendor offers one, the code shown gets you a discount at their checkout. Affiliate status never affects price data, ranking, or the Merit Score (full policy on /disclosure). Research use only.

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Compound reference

About FOXO4-DRI

CAS

2460055-10-9

Molecular formula

C228H388N86O64

Sequence

LTLRKEPASEIAQSILEAYSQNGWANRRSGGKRPPPRRRQRRKKRG

Typical dose range

1 mg subcutaneous, repeated on alternating days (e.g. days 1, 3, 5) per cycle; original mouse research used 5 mg/kg × 3 doses

Half-life

~2–6 hours (estimated preclinical; no human PK data available)

Independent evidence

COAs for FOXO4-DRI

20 third-party tests across 9 vendors. Each card links to the full report.

All 20 COAs for FOXO4-DRI →

Measured purity over time

FOXO4-DRI

Who's worth your money for FOXO4-DRI

Watch FOXO4-DRI

About FOXO4-DRI

COAs for FOXO4-DRI

12 citations indexed for FOXO4-DRI

Targeting the FOXO4-p53 axis by retro-inverso peptide senolytic agents: a pharmacological strategy to mitigate brain aging and cognitive decline

Acylglycerol Kinase Sensitizes Glioblastoma to Temozolomide via Limiting Mitochondrial Damage Related Cellular Senescence

The right time, the right cell: the potential for precision senotherapy in pulmonary arterial hypertension

FOXO4-DRI regulates endothelial cell senescence via the P53 signaling pathway

The disordered p53 transactivation domain is the target of FOXO4 and the senolytic compound FOXO4-DRI

FOXO4-DRI induces keloid senescent fibroblast apoptosis by promoting nuclear exclusion of upregulated p53-serine 15 phosphorylation