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Alpha GPC Supplement

$ 53.87

$ 59.85

Alpha GPC supports cognitive health by providing choline, a key nutrient for brain function and memory enhancement.
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Description

Alpha GPC is recognized as a highly bioavailable form of Choline, a water-soluble nutrient that serves as a precursor to the neurotransmitter acetylcholine. Acetylcholine is associated with various cognitive functions, including memory, intelligence, and mood regulation. Alpha GPC is considered particularly effective due to its ability to efficiently cross the blood-brain barrier.


What's in each capsule:

Compound: 300mg Alpha GPC 50% (standardized)

Active: 150mg alpha-glycerylphosphorylcholine

Per 2-capsule serving: 300mg active Alpha-GPC

Carrier: Mannitol and silica (used to stabilize Alpha-GPC, which is hygroscopic in pure form)


Soy-Free, Gluten-Free, Non-GMO

Benefits
  • 300mg ACTIVE ALPHA-GPC PER SERVING. Each 2-capsule serving delivers 600mg of standardized Alpha GPC 50%, yielding 300mg of active alpha-glycerylphosphorylcholine — the form clinical trials have used for cognitive and athletic performance studies.
  • May Support Cognitive Function and Memory — Alpha-GPC is a precursor to acetylcholine, the neurotransmitter involved in memory, learning, and focus.
  • Crosses the Blood-Brain Barrier — Alpha-GPC is considered one of the more efficient choline sources for reaching neural tissue.
  • Third-Party Tested — Every batch tested for identity, potency, and heavy metals (lead, cadmium, arsenic, mercury) in a cGMP facility.
  • Soy-Free, Gluten-Free, Non-GMO — Single-ingredient formula with hypromellose capsules. No proprietary blends, no fillers beyond the standardization carrier.

Directions & Dosage

For cognitive support: Take 1–2 capsules in the morning (150–300mg active Alpha-GPC). A second serving in the afternoon is optional. Do not exceed 4 capsules (600mg active) per day without consulting a healthcare provider.

For training: Take 2 capsules (300mg active Alpha-GPC) 60–90 minutes before resistance training, based on the protocol used in the Ziegenfuss 2008 trial.

The Science Behind Alpha GPC

Growth hormone response (Ziegenfuss et al., 2008) — 600 mg of Alpha-GPC taken 90 minutes before resistance training was associated with a larger serum growth hormone response vs. placebo and an increase in peak bench press force. Dose match: a 2-capsule serving of Double Wood’s Alpha-GPC delivers 600 mg of Alpha-GPC 50%, providing 300 mg active Alpha-GPC.

Cognitive support in older adults (De Jesus Moreno, 2003) — 1200 mg/day of Alpha-GPC over 180 days produced improvements on cognitive assessment scales, including MMSE, GDS, and ADAS-Cog, in adults with mild-to-moderate cognitive decline. Note: this trial used a 3× daily 400 mg dose under medical supervision.

Power output in trained athletes (Bellar et al., 2015) — 600 mg/day of Alpha-GPC for 6 days was associated with greater lower-body force production in a small trial of college-age athletes.
View Certificate of Analysis View Third Party Test Results

Every batch is manufactured in a cGMP facility and third-party tested for identity, potency, and contaminants including lead, cadmium, arsenic, and mercury.

Identity, potency, and contaminants verified per batch Identity, potency, and contaminants verified per batch
Manufactured in an FDA-registered cGMP facility Manufactured in an FDA-registered cGMP facility
Manufactured in the USA from Gloabally Sourced Materials Manufactured in the USA from Gloabally Sourced Materials

Benefits

  • Powerful Bioavailable Choline Support - Alpha GPC is the most bioavailable form of Choline currently available. Choline is a water-soluble nutrient which acts as a precursor to the neurotransmitter Acetylcholine, making Double Wood's Alpha GPC Choline Capsules easily absorbed by the body and fast acting.
  • Advanced Memory Formula - Double Woods Supplements' Alpha GPC Choline Supplement memory pills supports cognitive function, including memory, learning, and focus
  • Supports Acetylcholine Levels - Our Alpha GPC is a precursor to the neurotransmitter Acetylcholine, which supports memory and brain function. Alpha GPC brain pills supports brain health, especially as one ages
  • Monthly Supply - Each container of our Alpha GPC Choline brain health supplement contains 60 capsules allowing you to experience its potential benefits for a full month if taken as directed.
Benefits

Alpha GPC

A choline-containing compound found in small amounts in foods. It is recognized in traditional wellness practices and modern nutrition. It is commonly chosen to supports brain phospholipids and healthy memory and attention.

Alpha GPC

What Customers Are Saying

Reviews

"Reputation of product and overall delivery and ordering experience has always been a good experience."

Jacqueline P.

"Always fast shipping and great selection no matter what you’re looking for."

Aaron B.

"Double Wood is always my go-to for supplements. Great, effective, clean products and always at a reasonable price."

Jan W.

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Reviews
Supplement Facts

Pairs well with

Powerful alone, stronger together. Alpha GPC Supplement delivers targeted support on its own, but combining it with complementary ingredients can help create a more holistic and balanced approach to wellness.

  • Phosphatidylserine Supplement

    Phosphatidylserine is essential for brain health and cognitive function, supporting memory and focus for an energized mind.

  • L-Theanine Supplement

    L-Theanine offers a natural way to promote relaxation and calmness, helping you unwind without feeling drowsy.

Frequently Asked Questions

How much active Alpha-GPC am I getting per serving?

A 2-capsule serving of Double Wood's Alpha-GPC delivers 600mg of compound standardized to 50%, which yields 300mg of active alpha-glycerylphosphorylcholine. Each individual capsule contains 300mg compound (150mg active). The active percentage is shown directly on the Supplement Facts panel.

Is 50% Alpha-GPC less effective than 99% Alpha-GPC?

Not when matched on an active dose. A 600mg serving of Alpha GPC 50% delivers the same 300mg of active alpha-glycerylphosphorylcholine as a 300mg serving of Alpha GPC 99%. The 50% standardization uses mannitol and silica as a carrier to stabilize the active ingredient, which is hygroscopic and tends to liquefy at higher concentrations.

Why Alpha GPC 50% (not 99%)?

Pure Alpha-GPC is hygroscopic — it absorbs moisture from the air and liquefies above ~90% concentration, which makes capsule formulation unstable. Most reputable Alpha-GPC supplements (Jarrow, Momentous, Nature's Way) use a 50% standardization with mannitol and silica as a stabilizing carrier. This keeps the active alpha-glycerylphosphorylcholine bioavailable while protecting it from clumping or degradation over the product's shelf life.

What's the best dose of Alpha-GPC?

Most clinical trials used 300–600mg of active Alpha-GPC daily for cognitive and athletic outcomes. A conservative starting point is one 300mg capsule (150mg active) in the morning, with a second capsule in the afternoon if needed. Daily intake above 1,200mg of active alpha-glycerylphosphorylcholine is generally not recommended without medical guidance.

When to take alpha GPC?

Many people take Alpha GPC in the morning or early afternoon to support daily focus, memory, and cognitive performance. Some also choose to use it before a workout for potential benefits in mental clarity and muscle activation.

Is Double Wood Alpha GPC third-party tested?

Yes. Every batch is third-party tested by an ISO/IEC 17025-accredited laboratory for identity, Alpha GPC content, heavy metals, and microbial safety. Alpha-glycerylphosphorylcholine (Alpha GPC) is verified by HPLC against reference standards. The raw material is standardized to 50% Alpha GPC by weight (the industry norm — pure Alpha GPC is hygroscopic and unstable at higher concentrations), with mannitol and silica as standard carriers. The full COA panel also covers four heavy metals via ICP-MS (arsenic, cadmium, lead, mercury against USP <2232> limits) and six microbial screens (TPC, Yeast & Mold, Coliform, E. coli, Salmonella, Staph aureus per USP and AOAC methods). Manufactured in a cGMP-certified U.S. facility.

What does the Alpha GPC Certificate of Analysis confirm?

The COA verifies 300 mg of Alpha GPC 50% per capsule (delivering approximately 150 mg of active alpha-glycerylphosphorylcholine), or 600 mg per 2-capsule serving (delivering ~300 mg active). Content is measured by HPLC against the Alpha GPC reference standard. Heavy metals: arsenic, cadmium, lead, and mercury all verified below USP <2232> daily-intake limits via ICP-MS. Microbial counts within USP <2021>/<2022> specifications; E. coli, Salmonella, and Staphylococcus aureus confirmed Absent. The current batch COA is linked above for verification against the lot number on your bottle.

Overall rating: 4.733333 / 5 from 15 reviews.

AI Generated Review Summary

Summary topics

Review topics: [ingredients, energy, effect, supplement, enhancer, memory].

Review highlights

Reviews

"It really helps my memory! I’ve been taking these for a while now and they really work. I’m very pleased with them."

— Vicki (5/5)

"Don’t notice anything specific to this…so may be a bust in my opinion"

— Alfred (2/5)

Pretty Neat Effect!

"I've been noticing that I was losing concentration at my Thursday evening Poker game. In fact I had a month of losses racked up. I started taking Alpha GPC (heard about it on a Huberman Podcast) and the very next game I paid for my order! Been winning since!!"

— MICHAEL M. (5/5)

Not for me

"It’s not giving me any added energy. Focus and memory. No"

— Linda m. (5/5)

Excellent

"Products are impeccable, but prices exorbitant. I am searching for a complete modicum of natural nutritive. As a naturopathic pharmacist and Holistic health Practitioner I want to be a provider of supremely efficacious and affordable items."

— Paul M. (4/5)

great cognitive AND muscle strength aid

"I love your Alpha-GPC, it is a great cognitive enhancer, focus and attention are much improved AND muscle strength is a great improvement as well. Keep doing the good work."

— CARMEN S. (5/5)

Strong Cognitive Effects

"I mainly tried Alpha GPC for its effects on memory and after about a month of daily usage, I noticed my memory was much sharper. It a lot in active recall for my studies."

— Max (5/5)

Absolute mandatory supplement

"At any age, especially in 4th quarter of your life, you have consumed things that depletes your choline. Alpha GPC Restores it and heads off dementia."

— Michael P. (5/5)

Good product

"Good products, yet gotta work on your customers service via phone call"

— jason j. (5/5)

Quality product

"I find this form of choline superior to others. The plus is the competitive price."

— Arthur S. (5/5)

Q&A

Is the gelatin pork gelatin?
Our gelatin is bovine. We hope this helps.
1200 mg. a day is the standard recommended dosage for Alpha GPC to improve cognition in studies. Your product says it is 50% Alpha Gpc at 600 mg. Does that mean that in order to receive the 1200 mg of Alpha GPC a person would need to take 8 capsules of your product a day? Your product is not clear on this.
The standard recommended dose for Alpha GPC (Alpha-Glycerylphosphorylcholine) can vary depending on the intended use, but general guidelines suggest the following: For Cognitive Enhancement: A typical dose is 300-600 mg taken once or twice daily. For Athletic Performance: A common dose is around 600-1200 mg taken 30-60 minutes before exercise. For General Use: A dose of 300-600 mg per day is generally recommended. It&#x27;s important to start with a lower dose to assess tolerance and consult with a healthcare professional before starting any new supplement regimen.

Alpha GPC Supplement

From

$ 19.95

Primary Benefit

Brain Health

Other Benefits

Focus & Energy

Product Form

Capsule
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