---
product_id: 7118614
title: "Jarrow Formulas Mastic Gum 100 mg - 60 Veggie Caps - Mastic Gum Capsules Supporting Stomach and Duodenal Health - 60 Servings"
brand: "jarrow formulas"
price: "¥10806"
currency: JPY
in_stock: true
reviews_count: 8
category: "Jarrow Formulas"
url: https://www.desertcart.jp/products/7118614-jarrow-formulas-mastic-gum-100-mg-60-veggie-caps-mastic
store_origin: JP
region: Japan
---

# Non-GMO sunflower lecithin base 60 easy-to-swallow softgels per bottle 100mg Phosphatidylserine per softgel Jarrow Formulas Mastic Gum 100 mg - 60 Veggie Caps - Mastic Gum Capsules Supporting Stomach and Duodenal Health - 60 Servings

**Brand:** jarrow formulas
**Price:** ¥10806
**Availability:** ✅ In Stock

## Summary

> 🧠 Elevate your mental edge — because your brain deserves the best!

## Quick Answers

- **What is this?** Jarrow Formulas Mastic Gum 100 mg - 60 Veggie Caps - Mastic Gum Capsules Supporting Stomach and Duodenal Health - 60 Servings by jarrow formulas
- **How much does it cost?** ¥10806 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/7118614-jarrow-formulas-mastic-gum-100-mg-60-veggie-caps-mastic)

## Best For

- jarrow formulas enthusiasts

## Why This Product

- Trusted jarrow formulas brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clean & Pure Formula:** Non-GMO, gluten-free, allergen-friendly softgels crafted from sunflower lecithin—not soy.
- • **Synergistic Power-Up:** Pairs perfectly with DHA-rich supplements like fish or krill oil for enhanced brain performance.
- • **Effortless Daily Dose:** Small, smooth softgels designed for easy swallowing and optimal absorption.
- • **Brain Boosting Precision:** 100mg concentrated Phosphatidylserine supports sharper memory and cognitive clarity.
- • **Stress-Resilient Mindset:** Clinically inspired to help calm your mind and improve sleep quality without sedation.

## Overview

Jarrow Formulas PS100 delivers 100mg of high-purity phosphatidylserine from non-GMO sunflower lecithin in 60 easy-to-swallow softgels. Designed to support cognitive function, memory, and stress resilience, this gluten-free, allergen-conscious formula is optimized for adults seeking a clean, effective brain health supplement. For maximum impact, pair with DHA supplements to unlock your full mental potential.

## Description

Jarrow Formulas PS100 Phosphatidylserine 100mg softgels provide cognitive and brain health support.* Made with high-quality, non-GMO ingredients, this gluten free dietary supplement contains no wheat, soybeans, dairy, egg, fish, shellfish, peanuts, tree nuts or sesame. Phosphatidylserine is a prevalent component of cell membranes in the brain, which supports brain health.* Jarrow Formulas PS100 softgels deliver 100mg of a concentrated form of Phosphatidylserine from Sunflower Lecithin that supports brain health and cognition.* Suggested Use: Adults, take one softgel one to three times a day or as directed by your qualified healthcare professional. Informed by strong scientific research, Jarrow Formulas products are carefully crafted to ensure you get the benefit of each and every vitamin, mineral and supplement.

Review: The kind in SOFT GELS is far superior. - IMPORTANT NOTE: BUY THE KIND IN THE WHITE BOTTLE, NOT THE BLACK ONE. desertcart recently intermixed the reviews for two different PS (phosphatidylserine) products. Both are made by Jarrow, and desertcart sells both of them. I can see why desertcart was confused, because the labels are virtually identical. However, the products are NOT equally effective. Combining the reviews has confused a lot of people, and has also resulted in some people ordering the wrong product. (I did it myself recently, and had to call desertcart to cancel the mistaken order.) The labels look the same, and the reviews are intermixed, but the product inside is very different. The only way to tell them apart is from the color of the bottle. The Jarrow PS100 in the BLACK BOTTLE is NOT the one I am recommending. It's from genetically modified soybeans. The capsules are large and hard to swallow. They contain a brown powder which is not very effective. I have to take three or four of them to get the same effect as the other product, described below. The Jarrow PS100 in the WHITE BOTTLE is made from sunflowers, not soybeans. It is NOT genetically modified. The gel caps are small and easy to swallow. The product is easy to absorb, and very potent. This is the product I am recommending below. WHY I TAKE PS * I started taking PS a few months ago, when I was dealing with high stress and had high cortisol levels, making it difficult for me to relax and unwind. * Taking it made an almost immediate difference. * Months later, I still find that when I'm stressed, I still find that PS relaxes me. I feel like it calms my mind without sedating me. * When I take it, I feel better; I sleep better, and my short term memory seems better. * When I miss a day or two, I start noticing the same old short term memory problems: I'll go into the kitchen, then forget what I went in there for. When I take it, this seems much more rare. It's not that the PS caused the problems; I was experiencing them before the PS; it's that the PS seems to make my memory sharper and clearer, on days when I take it. * When I take PS at night, I tend to wake up the next morning feeling more refreshed than usual. * It's one of the few supplements I consider essential. WHAT I LIKE ABOUT THIS FORMULA: * This formula (in the blue/gold container) is made from sunflowers, not soy (so, no GM residues.) * It comes in soft gels, not capsules. They are smaller and easier to swallow than capsules. * I feel the effects sooner when I take the soft gels, than when I take Jarrow's other PS formula (or other companies' products) in gelatin capsules. * Because it's so more effective, I need less of it to get a beneficial effect. So the gelcaps are more economical also, in the long run. CAVEATS AND CAUTIONS * On Jarrow's website and elsewhere on the web, it says that this product (in the gel caps) should be kept REFRIGERATED after opening, to prevent it from spoiling. I wish this was made clearer in the desertcart ads. People who buy a bottle and stick it in a warm cupboard for a couple of months are probably taking a lower potency product as a result. * PS (of whatever type or brand) is most effective when taken with a source of DHA. PS was originally found in cows' brains, where it's naturally conjugated with DHA, and the lab studies that showed how much it helped with memory, were done with that type. But then due to fears about mad cow disease, it stopped being sold in that form. Unfortunately, most PS supplements, including this one, do NOT add in the DHA. My recommendation is to take a gelcap of PS with a capsule of fish oil or krill oil, both of which are high in DHA. Or you could take it along with a product like Conjugated Phosphatidylserine with DHA (my second favorite PS product). I like taking the Jarrow and Swanson products together for maximum benefit. • Though normal amounts shouldn't have this effect, taking a large amount of PS may make you sleepy. For a while I got into taking several PS capsules a day... we're talking 7 or 8 caps of PS ... and found myself feeling "dozy" during the daytime hours and needing to lie down a lot. This improved when I cut back on the dose. My current approach (which is working better) is to take a gelcap in the morning with a little fish or krill oil, then take a couple of gelcaps at night (when it may possibly help you get a good night's sleep). IN SUM: Great product, highly recommended. Just make sure that if you're buying Jarrow's PS, that you get the kind in gel caps, not the powdered stuff.
Review: Try it with caffeine before hitting the gym or studying. - Combining this with caffeine can potentially enhance mood, cognitive function, and physical performance simultaneously. I prefer to take it along with caffeine, ashwagandha, and rhodiola before heading to the gym. This combination, paired with a nutritious carb-rich breakfast, leaves me feeling focused, happy, and energetic! I typically take two capsules at a time but might even try three. Truly an outstanding product that not many know about. It's almost like finding a gem in the sand.

## Features

- Brain Health Formula: One 60 count bottle of Jarrow Formulas PS100 Phosphatidylserine Supplement 100 mg softgels for up to a 20-60 day supply
- Brain Support: Jarrow Formulas PS100 featuring Sharp-PS are brain health supplements for adults utilizing concentrated Phosphatidylserine from soy lecithin for excellent stability(1)
- Quality Ingredients: This brain support supplement is made with non-GMO, gluten-free ingredient phosphatidyl serine
- Daily Cognitive Brain Function Support Supplement: Adults, take one softgel one to three times a day or as directed by your qualified healthcare professional
- Disclaimer: (1)These statements have not been evaluated by the Food and Drug Administration; this product is not intended to diagnose, treat, cure, or prevent any disease

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0013OXA90 |
| Age Range Description | Adult |
| Allergen Information | Egg Free, Gluten Free, Peanut Free, Shellfish Free, Tree Nut Free |
| Best Sellers Rank | #33,757 in Health & Household ( See Top 100 in Health & Household ) #1,289 in Blended Vitamin & Mineral Supplements #2,414 in Sales & Deals #3,056 in Diet & Sports Nutrition |
| Brand | Jarrow Formulas |
| Brand Name | Jarrow Formulas |
| Color | White |
| Container Type | Bottle |
| Customer Reviews | 4.2 out of 5 stars 1,508 Reviews |
| Diet Type | Gluten Free |
| Dosage Form | 100 mg |
| Flavor | Unflavored |
| Global Trade Identification Number | 00767674542372, 00790011160069 |
| Item Dimensions | 6 x 5 x 4 inches |
| Item Form | Softgel |
| Item Weight | 54 Grams |
| Manufacturer | Jarrow Formulas |
| Material Features | GMO Free |
| Model Name | PS 100 Softgel |
| Number of Items | 1 |
| Primary Supplement Type | Vitamin |
| Product Benefits | Energy Management |
| Special Ingredients | Lecithin |
| Total Servings Per Container | 60 |
| UPC | 767674542372 790011160069 |
| Unit Count | 60.0 Count |

## Product Details

- **Brand:** Jarrow Formulas
- **Flavor:** Unflavored
- **Primary Supplement Type:** Vitamin
- **Unit Count:** 60.0 Count
- **Item Form:** Softgel
- **Item Weight:** 54 Grams
- **Item dimensions L x W x H:** 6 x 5 x 4 inches
- **Special Ingredients:** Lecithin
- **Diet Type:** Gluten Free
- **Product Benefits:** Energy Management

## Images

![Jarrow Formulas Mastic Gum 100 mg - 60 Veggie Caps - Mastic Gum Capsules Supporting Stomach and Duodenal Health - 60 Servings - Image 1](https://m.media-amazon.com/images/I/715z4-ZAPxL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The kind in SOFT GELS is far superior.
*by D***E on December 21, 2014*

IMPORTANT NOTE: BUY THE KIND IN THE WHITE BOTTLE, NOT THE BLACK ONE. Amazon recently intermixed the reviews for two different PS (phosphatidylserine) products. Both are made by Jarrow, and Amazon sells both of them. I can see why Amazon was confused, because the labels are virtually identical. However, the products are NOT equally effective. Combining the reviews has confused a lot of people, and has also resulted in some people ordering the wrong product. (I did it myself recently, and had to call Amazon to cancel the mistaken order.) The labels look the same, and the reviews are intermixed, but the product inside is very different. The only way to tell them apart is from the color of the bottle. The Jarrow PS100 in the BLACK BOTTLE is NOT the one I am recommending. It's from genetically modified soybeans. The capsules are large and hard to swallow. They contain a brown powder which is not very effective. I have to take three or four of them to get the same effect as the other product, described below. The Jarrow PS100 in the WHITE BOTTLE is made from sunflowers, not soybeans. It is NOT genetically modified. The gel caps are small and easy to swallow. The product is easy to absorb, and very potent. This is the product I am recommending below. WHY I TAKE PS * I started taking PS a few months ago, when I was dealing with high stress and had high cortisol levels, making it difficult for me to relax and unwind. * Taking it made an almost immediate difference. * Months later, I still find that when I'm stressed, I still find that PS relaxes me. I feel like it calms my mind without sedating me. * When I take it, I feel better; I sleep better, and my short term memory seems better. * When I miss a day or two, I start noticing the same old short term memory problems: I'll go into the kitchen, then forget what I went in there for. When I take it, this seems much more rare. It's not that the PS caused the problems; I was experiencing them before the PS; it's that the PS seems to make my memory sharper and clearer, on days when I take it. * When I take PS at night, I tend to wake up the next morning feeling more refreshed than usual. * It's one of the few supplements I consider essential. WHAT I LIKE ABOUT THIS FORMULA: * This formula (in the blue/gold container) is made from sunflowers, not soy (so, no GM residues.) * It comes in soft gels, not capsules. They are smaller and easier to swallow than capsules. * I feel the effects sooner when I take the soft gels, than when I take Jarrow's other PS formula (or other companies' products) in gelatin capsules. * Because it's so more effective, I need less of it to get a beneficial effect. So the gelcaps are more economical also, in the long run. CAVEATS AND CAUTIONS * On Jarrow's website and elsewhere on the web, it says that this product (in the gel caps) should be kept REFRIGERATED after opening, to prevent it from spoiling. I wish this was made clearer in the Amazon ads. People who buy a bottle and stick it in a warm cupboard for a couple of months are probably taking a lower potency product as a result. * PS (of whatever type or brand) is most effective when taken with a source of DHA. PS was originally found in cows' brains, where it's naturally conjugated with DHA, and the lab studies that showed how much it helped with memory, were done with that type. But then due to fears about mad cow disease, it stopped being sold in that form. Unfortunately, most PS supplements, including this one, do NOT add in the DHA. My recommendation is to take a gelcap of PS with a capsule of fish oil or krill oil, both of which are high in DHA. Or you could take it along with a product like Conjugated Phosphatidylserine with DHA (my second favorite PS product). I like taking the Jarrow and Swanson products together for maximum benefit. • Though normal amounts shouldn't have this effect, taking a large amount of PS may make you sleepy. For a while I got into taking several PS capsules a day... we're talking 7 or 8 caps of PS ... and found myself feeling "dozy" during the daytime hours and needing to lie down a lot. This improved when I cut back on the dose. My current approach (which is working better) is to take a gelcap in the morning with a little fish or krill oil, then take a couple of gelcaps at night (when it may possibly help you get a good night's sleep). IN SUM: Great product, highly recommended. Just make sure that if you're buying Jarrow's PS, that you get the kind in gel caps, not the powdered stuff.

### ⭐⭐⭐⭐⭐ Try it with caffeine before hitting the gym or studying.
*by J***K on May 22, 2024*

Combining this with caffeine can potentially enhance mood, cognitive function, and physical performance simultaneously. I prefer to take it along with caffeine, ashwagandha, and rhodiola before heading to the gym. This combination, paired with a nutritious carb-rich breakfast, leaves me feeling focused, happy, and energetic! I typically take two capsules at a time but might even try three. Truly an outstanding product that not many know about. It's almost like finding a gem in the sand.

### ⭐⭐⭐⭐⭐ Description of benefits, # of mg, and # of caps are wrong!
*by J***E on December 19, 2025*

The description of benefits for this product is suddenly completely wrong! I've taken this for years, and not for duodenal issues?! Also, headline states it's 1000mg and 120 capsules, whereas it's actually 100 mg and 60 caps. 5 stars for the product, and zero stars for the inaccuracies.

## Frequently Bought Together

- Jarrow Formulas PS100 Phosphatidylserine 100 mg, Dietary Supplement for Brain Health and Cognition Support, 60 Softgels, 20-60 Day Supply
- Jarrow Formulas Magnesium L-Threonate, MagMind Magtein Brain Supplements for Memory Support, 90 Veggie Capsules, Up to a 30 Day Supply
- Jarrow Formulas Extra Strength Theanine 200 mg, Dietary Supplement That Promotes Relaxation, Amino Acid Supplement for Relaxation Support, 60 Veggie Capsules, 60 Day Supply

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---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-22*