Product guide · Restricted substance
Concealed Labs T-Var 60 caps
Prohormone product from Concealed Labs, 60 capsules. This guide sets out what the manufacturer states about the composition of Concealed Labs T-Var 60 caps, what independent research says about its main ingredients, and the safety and regulatory points that apply. It contains substances that are not authorised as food or medicine in the EU. This guide is educational: it does not recommend use and gives no directions for use.
Back to the product- Named ingredients
- 3
- Amounts stated
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- Status
- Restricted substance
- Evidence summaries
- 3
Overview
Manufacturer informationIngredients & composition
Manufacturer information| Ingredient | Amount |
|---|---|
| Trendione (estra-4,9,11-triene-3,17-dione) | 30 mg per capsule |
| N-acetyl-L-cysteine (NAC) | Not stated |
| Vitamin E TPGS | Not stated |
The manufacturer does not state the amount of 2 of the 3 ingredients. Without amounts, the research summarised in this guide cannot be related to this product's dose.
Scientific background
Independent researchProhormones and designer anabolic steroids
Prohormones and "designer steroids" are synthetic anabolic-androgenic steroids, or precursors converted to them in the body, sold in supplement-style products. Examples include methasterone ("Superdrol"), methylepitiostanol ("Epistane") and trendione ("Trenavar").
N-acetylcysteine (NAC)
N-acetylcysteine (NAC) is a form of the amino acid cysteine and a precursor of glutathione, the body's main antioxidant. It is also used as a licensed medicine, for example as a mucolytic.
Vitamin E (α-tocopherol)
Vitamin E is a fat-soluble antioxidant. EFSA set adequate intakes of 13 mg a day for men and 11 mg a day for women, as α-tocopherol1. Vitamin E TPGS is a water-soluble form used as an ingredient and absorption enhancer.
Research evidence
Independent researchProhormones and designer anabolic steroids
No controlled trials support the safety of these products. Their muscle-building effect derives from anabolic-androgenic steroid activity, the same mechanism as controlled steroid drugs.
N-acetylcysteine (NAC)
A meta-analysis found that NAC can raise glutathione levels after physical exertion, with mixed effects on other markers of oxidative stress and muscle damage2.
Vitamin E (α-tocopherol)
The EU authorises the claim that vitamin E contributes to the protection of cells from oxidative stress3. Benefits of high-dose supplements beyond meeting needs are not established.
Evidence limitations
Independent researchThis product does not state all ingredient amounts, so the doses used in research cannot be compared with what one serving provides.
The studies summarised in this guide examined single ingredients. No published study has tested this product or this combination of ingredients.
Prohormones and designer anabolic steroids
Products are often mislabelled or adulterated, so the actual steroid and dose are uncertain45.
N-acetylcysteine (NAC)
Effects on performance in healthy people are not established2.
Vitamin E (α-tocopherol)
Most people in the EU meet their needs from food1.
Safety & potential risks
Independent researchProhormones and designer anabolic steroids
Case reports describe drug-induced liver injury, including cholestasis, from prohormone and bodybuilding supplements containing anabolic-androgenic steroids456. Anabolic steroids also suppress natural testosterone production and adversely affect blood lipids and the heart.
N-acetylcysteine (NAC)
NAC can cause nausea and digestive upset; people with asthma or taking nitroglycerin should ask a doctor first.
Vitamin E (α-tocopherol)
The EU Scientific Committee on Food set a tolerable upper intake level of 300 mg a day for adults7. High doses may increase bleeding risk in people taking anticoagulants.
Regulatory status
Contains synthetic anabolic-androgenic steroid compounds or prohormones. These are not authorised as food (including food supplements) or as medicinal products in the EU and are on the WADA Prohibited List. No dosing information for human use is provided.
Prohormones and designer anabolic steroids
Anabolic-androgenic steroids are medicinal substances and are not permitted in food or food supplements in the EU89. Anabolic agents are prohibited at all times by the World Anti-Doping Agency10.
Scientific references
- EFSA NDA Panel. Scientific Opinion on Dietary Reference Values for vitamin E as α-tocopherol. EFSA Journal. 2015;13:4149. DOI 10.2903/j.efsa.2015.4149
- Sadowski M, Zawieja E, Chmurzynska A. The impact of N-acetylcysteine on lactate, biomarkers of oxidative stress, immune response, and muscle damage: a systematic review and meta-analysis. J Cell Mol Med. 2024;28:e70198. PubMed 39632267
- Commission Regulation (EU) No 432/2012 establishing a list of permitted health claims made on foods. Official Journal of the European Union. Source
- Magee CD, Witte S, Kwok RM, Deuster PA. Mission compromised? Drug-induced liver injury from prohormone supplements containing anabolic-androgenic steroids in two deployed U.S. service members. Mil Med. 2016;181:e1169-e1171. PubMed 27612377
- Matusak M, Aljabban J, Wirtz M, et al. Cholestasis linked to bodybuilding supplements: exploring the risks of contamination. Case Reports Hepatol. 2024;2024:5112461. PubMed 38826497
- Nash E, Nicoll A, Batt N, et al. Drug-induced liver injury from selective androgen receptor modulators, anabolic-androgenic steroids and bodybuilding supplements in Australia. Aliment Pharmacol Ther. 2024;59:953-961. PubMed 38372012
- Scientific Committee on Food / EFSA. Tolerable Upper Intake Levels for Vitamins and Minerals. European Food Safety Authority; 2006. Source
- Directive 2001/83/EC on the Community code relating to medicinal products for human use. Official Journal of the European Union. Source
- Regulation (EU) 2015/2283 on novel foods. Official Journal of the European Union. Source
- World Anti-Doping Agency. The Prohibited List (current edition). Source
- Directive 2002/46/EC on the approximation of the laws of the Member States relating to food supplements. Official Journal of the European Union. Source
Sources checked against PubMed, Crossref or the official publisher on 2026-11-04. Manufacturer information is taken from the product's own data and has not been independently tested.
The product
Concealed Labs T-Var 60 caps
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