TESTOGEN · FORMULA COMPARISON
Gorilla Mind Sigma has a transparent seven-active label, with separate amounts for two and four capsules. That serving choice changes the comparison substantially. Here we examine both columns, the current extract specifications and the reasons we would choose Testogen Ultimate for a broader daily formula.
Published by Testogen, the brand behind Testogen Ultimate. We have a commercial interest in the recommendations below. This assessment compares formulas and research; it is not a personal-use test.
OUR VERDICT
Our recommendation
Testogen is our overall preference for its varied nutrient and botanical selection, including P5P B6, MK-7 K2 and copper, without fadogia. Sigma is a serious alternative for someone deliberately seeking its tongkat ali and KSM-66 combination. Sigma contains more KSM-66 at either stated serving, so our recommendation does not rest on a higher ashwagandha dose.
Explore Testogen UltimateOur choice for its ingredient selection, specified forms and short other-ingredient list.
4 capsules per daily serving
Two capsules and four capsules are different purchases
Sigma’s bottle contains 60 two-capsule servings, or 30 four-capsule servings. At two capsules it supplies 250 mg KSM-66; at four, 500 mg. Tongkat ali rises from 300 mg to 600 mg and boron from 5 mg to 10 mg. A cost-per-day comparison that uses the smaller serving while discussing the larger doses would be misleading.
The manufacturer also advises a break of at least one week after a month of use. That instruction is part of the buying decision. Testogen’s four-capsule serving is a different formulation and should not be treated as a capsule-for-capsule substitute.
All declared active ingredients, amounts and forms
Amounts apply to each stated serving. Extract weights, raw-herb equivalents and elemental nutrient amounts are different measurements.
Swipe horizontally to read all columns.
| Ingredient | Testogen Ultimate 4 capsules |
Gorilla Mind Sigma 2 capsules / 4 capsules; 60 / 30 daily servings |
|---|---|---|
| D-aspartic acid | 2,025 mg | Not included |
| Ashwagandha | 200 mg; KSM-66 root extract | 250 mg / 500 mg; KSM-66 root extract, 5% withanolides |
| Fenugreek | 100 mg; seed extract, at least 50% saponins | Not included |
| Panax ginseng | 100 mg; whole-plant extract, 5% ginsenosides | Not included |
| Nettle | 80 mg; root extract, 10:1 | Not included |
| Black pepper extract | 7 mg; BioPerine, 95% piperine | Not included |
| Vitamin D3 | 100 mcg (4,000 IU); cholecalciferol | 38 mcg / 75 mcg; cholecalciferol (label: 1,500 / 3,000 IU; two-capsule mcg figure rounded) |
| Vitamin K2 | 90 mcg; menaquinone-7 (MK-7) | Not included |
| Vitamin B6 | 8 mg; pyridoxal-5-phosphate (P5P) | Not included |
| Magnesium | 80 mg; bisglycinate and citrate | 20 mg / 40 mg; bisglycinate |
| Zinc | 25 mg; monomethionine | 15 mg / 30 mg; bisglycinate chelate |
| Copper | 0.5 mg; bisglycinate | Not included |
| Boron | 5 mg; bisglycinate | 5 mg / 10 mg; citrate |
| Fadogia agrestis | Not included | 300 mg / 600 mg; 10:1 root extract on panel |
| Tongkat ali | Not included | 300 mg / 600 mg; root extract, 1% eurycomanone |
“Not included” means absent from the assessed formula. “Not verified” means the available information does not establish the detail; it does not imply the brand hides it. Blend totals and their ingredients must not be added together twice.
Testogen Ultimate: 13 active ingredients. Mineral figures are nutrient amounts, not the weight of the full mineral compound.
Gorilla Mind Sigma: Each cell shows two-capsule then four-capsule amounts. Manufacturer directions specify 2–4 capsules daily and at least one week off after one month. Panel calls fadogia a root extract; a separate website testing heading calls it stem. Table follows the panel.
Capsule and other ingredients
Testogen Ultimate: Vegetable-cellulose capsule and NuFLOW rice-hull ingredient.
Gorilla Mind Sigma: Hypromellose (HPMC) capsule, microcrystalline cellulose and stearic acid.
Sigma has strengths worth acknowledging
The label specifies tongkat ali standardized to 1% eurycomanone and KSM-66 standardized to 5% withanolides. It also names bisglycinate forms for magnesium and zinc. Testogen cannot claim exclusive use of named extracts or chelated minerals in this comparison.
If tongkat ali is essential to your shortlist, Sigma includes it and Testogen does not. If the priority is KSM-66 quantity, Sigma is also ahead. Those are legitimate reasons someone might choose it. They are not evidence that Sigma’s full formula has been shown to outperform Testogen in a direct trial.
Why our overall preference remains Testogen
We prefer Testogen’s coverage across D-aspartic acid, KSM-66, standardized fenugreek and Panax ginseng, nettle root and specified nutrients. Magnesium is 80 mg in Testogen compared with 20–40 mg in Sigma, and Testogen includes P5P B6, MK-7 K2 and copper absent from Sigma’s listed actives.
Testogen also omits fadogia. That is a formulation preference for someone who does not want that additional botanical, not a claim that this review proves Sigma unsafe. A long mechanistic explanation of hormonal pathways is not the same as direct evidence of a finished supplement’s benefits for you.
Use the panel when the website wording differs
Sigma’s current panel calls fadogia a 10:1 root extract, while a separate website testing heading refers to stem. The comparison table follows the actual panel and records the difference. Check the bottle you receive if plant part is central to your choice.
The label is transparent about its other ingredients: HPMC capsule, microcrystalline cellulose and stearic acid. Testogen has a shorter vegetable-cellulose and rice-hull list. We like that simplicity, while recognising that a short excipient list alone does not establish better effectiveness or safety.
Evidence and sensible expectations
The tables compare composition, not proven head-to-head outcomes. A named extract can help identify what is being studied, but an ingredient study does not automatically validate a finished multi-ingredient product. For example, KSM-66 has been studied at 300 mg twice daily in a resistance-training trial; Testogen’s 200 mg serving is different. 2
D-aspartic acid research also includes mixed findings. We do not promise that adding it, or choosing the longest formula, will produce a particular testosterone increase. Our recommendation reflects the combination and ingredient detail we prefer. 3
Check suitability before combining supplements
Testogen supplies 100 mcg (4,000 IU) vitamin D3 daily, at the commonly used adult upper intake level. Count other sources; this is not a target everyone should aim to reach. 1
Do not stack these formulas simply because their ingredients differ. Check nutrient overlap, medicines and health conditions with an appropriate professional. Persistent fatigue or changes in sexual health deserve assessment rather than an assumption that a supplement will resolve them.
Questions before choosing
Does Sigma have more KSM-66 than Testogen?
Yes. Sigma supplies 250 mg at two capsules or 500 mg at four, compared with 200 mg in Testogen.
Why does the bottle say 60 servings?
That count uses the two-capsule serving. Four capsules daily gives 30 daily servings from the same bottle.
Is Testogen a tongkat ali supplement?
No. Its recommendation rests on a different botanical and nutrient selection. If tongkat ali is your specific goal, that distinction matters.
Our final choice
Sigma makes sense for a buyer who wants its specified tongkat ali and larger KSM-66 servings and accepts its usage instructions. Our broader recommendation is Testogen Ultimate: a different, varied formulation with additional nutrients, a short other-ingredient list and no fadogia. The full table makes the trade-off visible.
Explore Testogen UltimateHow this assessment was made
Assessed on 11 September 2026 using the identified manufacturer information and supplied labels. Complete declared active lists include competitor-only ingredients and blend members where identified. Unknown details remain marked rather than treated as absent. Ingredient forms, extract weights and raw-herb equivalents are kept distinct. This is commercially interested editorial analysis, not independent testing or a clinical ranking.
References
- Rizzoli (2021). Vitamin D supplementation: upper limit for safety revisited.
- Wankhede et al. (2015). Examining the effect of Withania somnifera supplementation on muscle strength and recovery: a randomized controlled trial.
- Melville et al. (2015). Three and six grams supplementation of D-aspartic acid in resistance-trained men.
