Transparent Labs Fat Burner Stim-FreevsLipozene

It combines four plant-derived compounds that may nudge metabolism and appetite without stimulants. Green tea catechins (EGCG) and Capsimax (capsaicin) have been shown to modestly raise energy expenditure and fat oxidation; Paradoxine (grains of paradise, standardized to 6-paradol) is thought to activate brown adipose tissue to burn calories as heat; ForsLean (Coleus forskohlii, standardized to forskolin) raises cyclic AMP, which is linked to fat mobilization. Capsaicin and grains of paradise may also blunt appetite, which can make a calorie deficit easier to maintain. The formula contains no caffeine or other stimulants.

Lipozene's sole active ingredient is glucomannan, a soluble konjac fiber. Taken before meals with water, it absorbs fluid and swells into a gel that fills part of the stomach, which can promote fullness and modestly reduce food intake. There is no caffeine, thermogenic, or metabolic-stimulant component, so any effect comes purely from the fiber's bulking and satiety action within a reduced-calorie diet.

No trial tests this exact blend, so evidence comes from each ingredient and several of the studies are small. A 2005 Obesity Research study (Godard et al.) found 250 mg of 10% forskolin twice daily for 12 weeks significantly reduced body fat percentage and fat mass in 15 overweight and obese men, though total body weight did not differ from placebo. A 2014 trial in the Journal of Nutritional Science and Vitaminology found 30 mg/day of grains of paradise extract increased whole-body energy expenditure and reduced visceral fat versus placebo in a small group of women. Capsaicin and green tea catechins have been shown to modestly raise energy expenditure and fat oxidation, but a 2010 American Journal of Clinical Nutrition meta-analysis put green tea's weight effect at roughly 1 kg or less, which the authors call clinically modest at best. Net: real but small, deficit-dependent effects.

Glucomannan has clinical support for small weight reductions when used as a pre-meal preload in a calorie-restricted diet, with an EFSA-recognized claim at roughly 3 g/day; however, reviews describe the effect as modest and inconsistent, and NIH notes limited long-term data. Critically, Lipozene's specific advertising claims were challenged and resolved through an FTC settlement, so the brand's marketed efficacy should be discounted relative to the underlying ingredient's modest, evidence-based effect.

Because it has no stimulants, most users report no jitters, anxiety, or sleep disruption. The most common complaint is mild gastrointestinal upset, nausea, warmth, or a "hot" sensation from the Capsimax and Paradoxine pepper extracts, especially on an empty stomach; taking the capsules with food and water tends to reduce this. Rare but more serious concerns relate to the ingredients themselves: high-dose green tea extract has been associated with uncommon, idiosyncratic cases of liver injury (documented in the NIH LiverTox database), and forskolin can lower blood pressure and may interact with anticoagulants and antihypertensives. Stop use and seek medical care if you notice yellowing skin or eyes, dark urine, severe abdominal pain, or signs of very low blood pressure such as dizziness or fainting.

As a bulking fiber, Lipozene most commonly causes bloating, gas, and looser stools, which often ease with continued use. The key safety rule for any glucomannan product: take each dose with a full glass of water and never dry, because the fiber can expand in the throat or esophagus and create a choking or obstruction hazard. This is educational information, not medical advice.

As of 2026, Transparent Labs lists this product at about $54.99, often discounted to around $49.99, for a 120-capsule bottle that delivers 60 servings, or roughly a 30-day supply at the full 4-capsule daily dose. That works out to about $0.83-$0.92 per 2-capsule serving, or roughly $1.65-$1.83 per day. Third-party retailers sometimes price it lower (around $45) or higher. Subscribe-and-save and periodic sitewide promo codes can trim the price further. As a dietary supplement it is paid out of pocket and is generally not covered by insurance, and typically not HSA/FSA eligible without a documented medical need. It is occasionally out of stock or branded as "Body Recomp," so verify you are buying the stim-free version.

As of May 2026, Lipozene generally runs about $15-$30 depending on bottle size and retailer, with frequent buy-one-get-one offers; the 120-capsule Mega Bottle sits at the higher end. The low headline price can be offset by multi-capsule dosing and aggressive upsells. There is no insurance coverage, and generic glucomannan is a cheaper way to get the same fiber.

Best for adults who want appetite and metabolic support but are caffeine-sensitive, train in the evening, or already use a separate stimulant pre-workout, and who already have a genuine diet and exercise plan and want a marginal edge. Avoid it if you are pregnant, breastfeeding, or under 18; if you take blood pressure, blood thinner, or diabetes medications (forskolin can lower blood pressure and may interact with anticoagulants and antihypertensives, and green tea can affect some drugs); if you have liver disease (high-dose green tea extract has rare liver-injury reports); or if you have an active ulcer or significant reflux, since the pepper and ginger-family extracts can irritate the gut. This is general information, not medical advice; check with your doctor before starting any supplement.

Intended for adults seeking appetite support. Not for those under 18 or who are pregnant or breastfeeding without clinician guidance. People with swallowing difficulties, esophageal narrowing, diabetes (fiber can affect glucose and medication absorption), or who take oral medications should consult a clinician or pharmacist first.