Double Wood Supplements Phosphatidylserine 300mg Review

A phosphatidylserine supplement designed to support cognitive functions such as focus, memory, and overall brain health. Each serving provides 300mg of the active ingredient.

Product Focus: Adrenal SupportAlso graded for:Focus and MemoryAlso covers:HormonesBrain
Tier ⓘ
Members see this product's tier and why. Tiers run from 1, the strongest evidence, to 5. How we grade →
Evidence ⓘ
How strongly the evidence says this product works: human studies count most, then real reviews, then our biohacker panel.
Positive Reviews
Biohacker Mentions
Cost per month
$10
Study, Trial or Testing Result SummaryMembersHuman studies

1 of these 2 human studies gave phosphatidylserine by drip, not by mouth.

This product gives 300 milligrams of phosphatidylserine a day, which is the 50 milligram dose that in a study. The research for stress and adrenal response is very thin, with only two human studies, so firm conclusion can be drawn. …

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

Review Totals and SummaryMembers5,768 reviews
5,768 reviews · Amazon 5,543 · Doublewoodsupplements 222 · Target 3

Reviews for Double Wood Supplements Phosphatidylserine 300mg are largely favorable, with users expressing across multiple platforms like Amazon and the brand’s own website. users describe experiencing noticeable , particularly when it comes to cognitive clarity, memory, and focus. …

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

Biohacker SummaryMembersWhat our biohacker panel says

take it at night or in the evening to sleep, and a use it for jet lag and travel, while others point to memory, learning, attention and brain fog. Doses vary: say 100 to 300 milligrams, others say 300 to 400 milligrams, and a go up to 400 to 800 milligrams, with one noting that 400 was effective than 800 in trials. …

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

RAL SummaryMembersThe tier and why

The evidence is to two studies, one using a one-time injection rather than a pill. …

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

More DetailsMembersBody systems · Combine with · Possible side effects

Body systems: Endocrine system, Nervous system. Combine with and possible side are for members.

Members see the full analysis, checked against their own meds and goals. Start My 7-Day Free Trial →

Supplement FactsPhosphatidylserine ) 300 mg
Supplement Facts
Serving Size 2 Capsules
Servings Per Container 60
Amount Per Serving% Daily Value
Phosphatidylserine (from Non-GMO soy (Soybeans)) (Standardized to 20%)300 mg†
† Daily Value not established.

Directions: Take two 150 mg capsules per day with food.

Barcode (UPC) 859793007099 · Label source: Healf · Report a label change

Where to BuyDouble Wood · Amazon · Vitacost
Double WoodBuy ↗
AmazonBuy ↗
VitacostBuy ↗

We sell no supplements. Prices change; check the store.

Graded October 23, 2026 by the Reverse Age Lab evidence engine, from human studies, real reviews and our biohacker panel. How we grade. Is this medical advice? No. Rala organizes the published evidence; go over any change with your doctor, especially if you take meds.