Turkesterone vs Ecdysterone: What's the Difference?

Turkesterone and ecdysterone are two of the most talked-about "natural anabolic" ingredients of the last few years. They are often mentioned in the same breath, sometimes as if they were the same thing. They are related, but they are not identical, and the research behind them is very different in size.

Here is what each one is, what the evidence actually says, and how to read them on a label.

What ecdysteroids are

Both compounds belong to a family called ecdysteroids. Insects make ecdysteroids to control moulting. Many plants make them too, probably as a defence against the insects that eat them. The plant versions are called phytoecdysteroids.

Despite the "steroid" in the name, ecdysteroids are not anabolic steroids. They share a basic ring structure with steroid hormones, but research suggests they do not work through the androgen receptor, which is the receptor testosterone and anabolic steroids act on. One proposed route is through a different receptor, estrogen receptor beta (Parr and colleagues, Molecular Nutrition & Food Research, 2014). That mechanism is still being studied.

Ecdysterone

Ecdysterone is another name for 20-hydroxyecdysone, the most common ecdysteroid in nature. It is also sold as beta-ecdysterone. It is found in small amounts in foods such as spinach and quinoa, and supplement-grade ecdysterone is usually extracted from plants that contain far more of it.

It also has the larger research base of the two. The study most often quoted is a 10-week trial in young men doing resistance training (Isenmann and colleagues, Archives of Toxicology, 2019). The groups taking ecdysterone gained more muscle mass than the placebo group. It was a single, relatively small study, and it still needs to be repeated, but it is the strongest human data in this category.

That study had a practical consequence: since 2020, ecdysterone has been on the World Anti-Doping Agency's monitoring program. It is not a banned substance, but WADA tracks its use. If you compete in a drug-tested sport, check your federation's current rules before taking it.

Turkesterone

Turkesterone is a close relative of ecdysterone with one extra hydroxyl group in its structure. It comes mainly from Ajuga turkestanica, a plant native to Central Asia, which is where the name comes from.

Its popularity grew mostly online, and that is where the evidence gap matters. Human research on turkesterone is very limited. Most of what is said about it is extrapolated from animal studies and from the ecdysterone research above. That does not mean it does nothing, but anyone describing turkesterone as "proven" is going further than the published research does.

Turkesterone vs ecdysterone at a glance

• Family: both are phytoecdysteroids. Neither is an anabolic steroid.
• Main source: ecdysterone from several plants including spinach; turkesterone mainly from Ajuga turkestanica.
• Human research: ecdysterone has a small but real body of human data; turkesterone has very little.
• Sport: ecdysterone is on WADA's monitoring program. Check current rules for both if you are tested.

How to read them on a label

Extract labels can be confusing, so two details are worth knowing.

Percentages mean standardisation. When a label says "Turkesterone (10%) 500mg", it normally means 500mg of plant extract standardised to contain 10% turkesterone. The percentage tells you how concentrated the extract is, so two products with the same milligram figure can contain very different amounts of the actual compound.

Disclosed doses beat blends. Ecdysteroids often appear inside proprietary blends, where you only see a total for the whole blend. A label that lists each ingredient with its own dose is the only way to know what you are getting.

Where they appear in Neurolab formulas

BUILD contains 500mg of turkesterone (10%) per 4-capsule serving, alongside arachidonic acid, phosphatidic acid, ATP, Smilax officinalis and AstraGin®. ANABOLIC contains 130mg of beta-ecdysterone per 2-capsule serving, alongside epicatechin, Fadogia agrestis, fenugreek and dileucine. Every dose is printed on each label, and the full Supplement Facts are on the product pages.

Who should skip them

Because research on long-term use is limited, these ingredients are not for anyone who is pregnant or breastfeeding, and they are not intended for under-18s. If you take medication or have a medical condition, check with your doctor first. And if you are a tested athlete, check before you buy, not after.

Quick answers

Is turkesterone a steroid? It is a plant ecdysteroid, not an anabolic steroid. The name refers to its ring structure, not to how it works in the body.

Which is better, turkesterone or ecdysterone? Ecdysterone has more human evidence. Turkesterone is chemically very similar but much less studied, so claims that it is stronger are not supported by published research yet.

Can I take both? They are often combined in muscle-building stacks. As with any stack, read every label so you know the total amount of each compound you are taking.

Does food contain them? Spinach and quinoa contain small amounts of ecdysterone, far below the amounts used in supplements and studies.

The short version

Turkesterone and ecdysterone are close plant relatives, neither is an anabolic steroid, and ecdysterone has the stronger human evidence. Treat both as training support with a promising but still small research base, read the standardisation percentage on the label, and check sport rules if you are tested.

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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 if you are pregnant, nursing, taking medication, or have a diagnosed medical condition.