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Desert Online General Trading LLC

Dubai, United Arab Emirates

D-Serine

Q: Relentless Improvement: do you self test the purity of overseas ingredients before production of D-Serine?

When the active arrives we sample it and send it out to a third-party analytical testing laboratory based in the USA. The material is quarantined until test results are received back. **As is required for GMP compliance.**

Q: Is this made in the usa? is it based on porcine aka pig, or shell fish?

The active is not available from USA suppliers. As you are well aware, our high-tech manufacturing was gutted and shipped offshore decades ago. Downstream of the active, all remaining manufacturing and testing is USA. The is no porcine, or shellfish.

Q: Relentless Improvement: do you third party test the purity of overseas ingredients before production of third D-Serine?

As required under GMP, yes. OF COURSE. We have conducted full third-party testing since we began business 17 years ago, before it was required by law. I'll also point out, 99% of actives used by ALL supplement companies come from "overseas" as USA manufacturing was gutted decades ago.

Q: For anyone who's tried both L-Serine & D-Serine, did D-Serine really achieve better results?

Because D-Serine has a poor absorption rate orally one must take a lot. I gave to my wife for three months when recovering. I don't know how well it worked but I would do again.

Product ID: 735149002

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Details

Brand
Relentless
Flavour
Unflavored
Primary supplement type
Magnesium
Item form
Capsule
Item weight
0.11 Kilograms
Item dimensions L x W x H
6.4 x 5.1 x

❌No magnesium stearate, pure formula

🌱90 vegan capsules, clean & plant-based

💊700mg pure D-Serine per capsule

Frequently Bought Together

Relentless Improvement D-Serine

L-Serine Capsules (Third Party Tested) - 2,000mg Servings Used in Clinical Study, 180 Count, 500mg per Capsule (L Serine Amino Acid for Serotonin Production and Brain Support) by Double Wood

Description

🧠 Elevate your mind, naturally — because your brain deserves the best!

CLEAN GREEN - 90 vegan capsules crafted without magnesium stearate for a pure, clean supplement experience.
MOOD MEMORY SUPPORT - Amino acid formula designed to support healthy cognition and emotional balance.
COGNITIVE CLARITY BOOST - 700mg of brain-supporting D-Serine in every capsule to elevate focus and mood.
TAILORED DOSAGE FLEXIBILITY - Adjust your intake from 3 to 8 capsules daily to match your unique cognitive needs.
RELENTLESS IMPROVEMENT BRAND - Trusted quality from a brand dedicated to your mental and physical peak performance.

D-Serine is a high-potency amino acid supplement delivering 700mg per vegan capsule, formulated without magnesium stearate for purity. Designed to support healthy cognition and mood, it offers flexible dosing from 3 to 8 capsules daily, making it ideal for adults seeking enhanced mental clarity and emotional balance.

Specifications

Additives	Amino Acid
Serving Recommendation	3-6 capsules per day as needed or as recommended by your health provider
Brand	Relentless Improvement
Format	Capsule
Age Range Description	Adult

Have a Question? See What Others Asked

Relentless Improvement: do you self test the purity of overseas ingredients before production of D-Serine?

Is this made in the usa? is it based on porcine aka pig, or shell fish?

Relentless Improvement: do you third party test the purity of overseas ingredients before production of third D-Serine?

For anyone who's tried both L-Serine & D-Serine, did D-Serine really achieve better results?

Common Questions

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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