NutraBio Tongkat Ali LJ100® 200mg – Clinically Studied Longjack Extract for Testosterone & Vitality Support

NutraBio Tongkat Ali LJ100 packs 200 mg of LJ100® Eurycoma longifolia (longjack) root extract into a single vegetarian capsule. Natural testosterone output tends to peak in your mid-to-late twenties and then tapers by roughly 1–2% per year, which is why lifters and active adults turn to tongkat ali to help support healthy testosterone levels already within the normal range, a balanced cortisol response to hard training, libido, and everyday energy.* No proprietary blend, no fillers, no excipients — just a fully disclosed dose of the most researched tongkat ali extract available.

Why lifters choose NutraBio Tongkat Ali LJ100

• 200 mg LJ100® per capsule — a concentrated 100:1 longjack root extract, the same branded ingredient used in tongkat ali research instead of generic root powder
• Standardized for potency — 40% glycosaponins and 22% eurypeptides, so every capsule delivers the same active profile
• Supports healthy testosterone & cortisol balance — helps maintain a muscle-friendly hormonal environment during intense training*
• Libido, energy & mood support — used for centuries across Southeast Asia as an adaptogen and natural aphrodisiac*
• Body composition support — may help support lean mass, strength, and healthy body fat levels alongside training and nutrition*
• Zero fillers or excipients — 100% vegetarian capsule with a fully transparent label
• Made in the USA in NutraBio's own GMP-certified facility, with third-party testing on every batch

What is LJ100® tongkat ali?

LJ100® is a branded, standardized extract of Eurycoma longifolia root — the plant also known as tongkat ali, longjack, or Malaysian ginseng. Generic tongkat ali products vary widely in purity and strength. LJ100 is held to consistent levels of its key bioactives (glycosaponins and eurypeptides) and has been examined in more than a dozen human clinical studies looking at testosterone, cortisol, mood state, strength, and body composition.* That research record and batch-to-batch consistency are why LJ100 is treated as the benchmark tongkat ali ingredient.

How do you take NutraBio Tongkat Ali?

As a dietary supplement, take 1 capsule daily. Each bottle holds 60 capsules — a full 60-day supply at the label dose. Do not exceed the recommended serving unless directed by a healthcare professional. For best results, pair it with consistent resistance training, quality sleep, and a solid nutrition plan.

What's in each capsule?

Serving size: 1 vegetable capsule. Servings per container: 60. Each serving provides LJ100® Tongkat Ali (Eurycoma longifolia) root extract – 200 mg, standardized to 40% glycosaponins and 22% eurypeptides, delivered in a vegetarian capsule with no fillers, excipients, or proprietary blends.

What does tongkat ali stack well with?

• NutraBio Ashwagandha KSM-66 — a second adaptogen for stress and cortisol support*
• NutraBio DIM with Calcium D-Glucarate — supports healthy estrogen metabolism*
• NutraBio ZMA — zinc and magnesium for recovery and sleep quality*
• NutraBio DHEA 25mg — hormone precursor support for adults*

Browse the full Hormone Optimization collection to build your stack.

Who is Tongkat Ali LJ100 for?

Healthy adults 18 and older who want to support natural testosterone production, libido, and vitality — especially men in their 30s, 40s, and beyond, and hard-training athletes managing the stress of heavy training blocks or dieting phases.*

Frequently asked questions

How many servings are in a bottle?
60 capsules at 1 capsule per day gives you 60 servings — a two-month supply.

Is longjack the same thing as tongkat ali?
Yes. Tongkat ali, longjack, and Eurycoma longifolia are all names for the same Southeast Asian root. LJ100® is a specific standardized extract of that root.

Is tongkat ali a steroid or prohormone?
No. It is a plant root extract — not a hormone, steroid, or prohormone. It is used to support your body's own natural production.*

How long does tongkat ali take to work?
Most tongkat ali research runs four weeks or longer, so consistent daily use matters more than the time of day you take it.*

How is this different from Tongkat Ali + Fadogia?
This is a single-ingredient LJ100® capsule, which makes it easy to dose on its own or add to an existing stack. Tongkat Ali + Fadogia combines tongkat ali with fadogia agrestis in one formula. Pick one rather than doubling up on tongkat ali.

Is it vegetarian?
Yes — the extract is delivered in a 100% vegetarian capsule with zero fillers or excipients.

About NutraBio

NutraBio has been making supplements in its own U.S. facility for three decades, built around fully transparent labels, no proprietary blends, fully dosed formulas, and third-party testing on every batch — so what's on the label is what's in the bottle.

WARNING: Keep out of reach of children. Do not use if pregnant or nursing. Not for use by individuals under the age of 18. Consult a physician before use if you have a medical condition or are taking any medication. Discontinue use 2 weeks prior to surgery.

*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. Consult your physician before use.