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Article: Valproic Acid (VPA) for Hair Restoration

Valproic Acid (VPA) for Hair Restoration - HealthBrew Clinic
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Valproic Acid (VPA) for Hair Restoration

Hair loss is a common concern that affects millions of individuals worldwide. While numerous treatments exist, ongoing research continues to explore innovative solutions. One such promising candidate is Valproic Acid. Although originally approved for other medical conditions, Valproic Acid is gaining attention for its potential role in stimulating hair growth. This blog will discuss its FDA-approved uses, the science behind its potential for hair growth, and relevant study results.

FDA-Approved Uses of Valproic Acid

Valproic Acid is primarily an antiepileptic medication, approved by the FDA for the treatment of seizures. It's also used in the management of bipolar disorder and to prevent migraine headaches. The drug operates as a Histone Deacetylase (HDAC) inhibitor and has effects on neurotransmitter modulation.

Venturing into Off-Label Use: Hair Growth

After its established medical applications, recent attention has turned to Valproic Acid’s potential as a hair growth stimulant. Several studies suggest that it activates the Wnt/β-catenin pathway, an essential component in hair follicle development and cycling.

Mechanism of Action

Valproic Acid affects hair growth through various means:

  • Activating Wnt/β-catenin Pathway: Critical for hair follicle development and growth, activation of this pathway can stimulate the anagen (growth) phase in hair follicles.

  • HDAC Inhibition: By inhibiting HDAC, Valproic Acid can alter gene expression to favor hair growth.

  • Upregulation of Growth Factors: There’s evidence that Valproic Acid upregulates certain growth factors important for hair growth.

Study Findings

  • Journal of Dermatological Science: A study published in 2012 demonstrated that Valproic Acid could stimulate hair regeneration in mouse models by activating the dormant hair follicles into the anagen phase through Wnt/β-catenin pathway activation.

  • Clinical Trials: Although large-scale clinical trials are lacking, smaller studies and anecdotal evidence suggest that the combination of Valproic Acid with existing treatments like minoxidil or a derma roller may offer synergistic effects.

Benefits for Hair Growth

  • Stimulates Anagen Phase: The activation of the Wnt/β-catenin pathway can induce the anagen phase, prolonging the hair follicles' growth cycle.

  • Enhanced Efficacy: Combining Valproic Acid with established treatments may offer improved results.

  • New Hair Follicle Formation: Preliminary research suggests potential for the formation of new follicles.

Side Effects and Precautions

  • Skin Irritation: Topical application may cause skin irritation.

  • Systemic Absorption: There's a minimal but existing risk of systemic absorption, which could potentially lead to liver toxicity.

  • Pregnancy Risks: It is a known teratogen and is contraindicated in pregnant women.


Valproic Acid is showing promise as an off-label treatment for hair loss, but more robust clinical trials are needed. Consult your healthcare provider for personalized medical advice.

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