Support & Solvents
Injection Kit
50 syringes + 100 padsEverything required to safely reconstitute and inject reconstituted peptides — 50 sterile insulin syringes plus 100 alcohol prep pads.
$25
Lyophilized · 40 g / jar
Cognitive & Sleep
40 g / jar
Phenibut HCl Powder — 40g Jar (β-Phenyl GABA)
Selective GABA-B agonist · Anxiolytic small molecule · Powder form
Premium Grade
Powder
β-phenyl analog of GABA — selective GABA-B receptor agonist used for anxiolytic and dependence applications.
- CAS Number
- 3060-41-1
- Molecular Weight
- 215.67 Da
- Purity
- ≥ 99.0% (HPLC)
- Storage
- −20 °C, lyophilized
Amino Acid Sequence
β-(4-chlorophenyl)-γ-aminobutyric acid hydrochloride
Free over $59$7.99 to US (48h) · $14.99 worldwide (5 business days)
Discreet PackagingPlain insulated mailer, no compound name on the outside.
Certificate of Analysis
Per-lot analytical report — HPLC, ESI-MS, LAL endotoxin, heavy metals, sterility
Current lotPHE445
Released2026-04-30
HPLC purity99.19%
Endotoxin (LAL)Pass · < 0.5 EU/mg
About Phenibut HCl Powder
Buy Phenibut HCl powder at IGF1 Shop — 40g jar. Phenibut hydrochloride is a small-molecule β-phenyl derivative of GABA originally synthesized in the Soviet Union. It crosses the blood-brain barrier (unlike native GABA) and acts primarily as a GABA-B receptor agonist, with secondary α2δ subunit activity. Used widely for anxiolytic applications and chronic-tolerance studies. Each 40g jar is HPLC ≥99% pure with a per-lot Certificate of Analysis. CAS 3060-41-1.
Also known as: Phenibut HCl · Phenibut · β-phenyl GABA · Anvifen · Fenibut
Phenibut HCl Powder — Mechanism & Specifications
Phenibut hydrochloride is a small-molecule β-phenyl derivative of GABA originally synthesized in the Soviet Union. It crosses the blood-brain barrier (unlike native GABA) and acts primarily as a GABA-B agonist, with secondary α2δ subunit activity. Used widely for anxiolytic and chronic-tolerance applications.
Quality & release criteria
Every lot of Phenibut HCl Powder is released only after passing reverse-phase HPLC (≥ 99% area purity at 220 nm against a reference standard), ESI mass spectrometry confirmation of molecular weight, and Limulus Amebocyte Lysate (LAL) endotoxin testing below 0.5 EU/mg. The lot-specific Certificate of Analysis is provided with the order and available on request before purchase.
$66
3 vials · $22/vial
FAQ
Phenibut HCl Powder — Frequently asked questions
What is Phenibut?
Phenibut hydrochloride is a small-molecule β-phenyl derivative of GABA originally synthesized in the Soviet Union. It crosses the blood-brain barrier (unlike native GABA) and acts primarily as a GABA-B agonist with secondary α2δ subunit activity. CAS 3060-41-1.
How is Phenibut typically used?
Phenibut is taken orally at 250-750mg, 1-3 times per day. Onset is slow (2-4 hours), so dosing well in advance of the desired effect is standard. Phenibut should not be used daily long-term due to rapid tolerance development and a documented withdrawal profile — most protocols cap use at 2-3 times per week.
How is Phenibut tested?
Each Phenibut HCl batch is HPLC-tested to ≥99% purity, with ESI-MS identity confirmation. ISO 17025-accredited third-party labs perform the testing; the per-lot COA accompanies every jar.
How do I store Phenibut?
Store Phenibut HCl powder in its original sealed jar at room temperature, protected from light and moisture. Stable for 24+ months sealed.
