The key ingredients are listed below:

Chromium: An essential trace mineral that functions as a cofactor for insulin, improving the hormone’s ability to transport glucose from the bloodstream into cells. By enhancing insulin efficiency, chromium helps prevent the blood sugar spikes and crashes that trigger intense carbohydrate cravings and energy drops between meals. A meta-analysis published in Diabetes Care covering 16 randomized clinical trials documented chromium’s significant effects on glycemic control. A randomized controlled trial (Martin et al., Diabetes Care, 2006) found chromium picolinate improved insulin sensitivity and attenuated body weight gain and visceral fat accumulation. Note: evidence is most consistent in populations with existing insulin resistance or chromium deficiency; effects in people without these conditions are more modest.

African Mango Seed Extract: Derived from the seeds of the West African “bush mango” tree, this standardized extract (IGOB131) has been studied in three randomized, double-blind, placebo-controlled trials. The most widely cited 2009 study (Lipids in Health and Disease, Ngondi et al.) using 150mg twice daily over 10 weeks found significant reductions in body weight (−12.8 kg vs −0.7 kg placebo), waist circumference (−16.19 cm vs −5.3 cm), and body fat percentage (−6.3% vs −1.99%) compared to placebo. Mechanistically, IGOB131 modulates PPARγ (a gene that promotes fat cell formation), increases adiponectin, and reduces leptin resistance — addressing satiety and fat storage at a hormonal level. Important caveat: all three trials were conducted by the same research group in Cameroon, funded by the ingredient supplier. A 2013 systematic review noted high risk of bias. Independent replication is needed, and real-world results are likely more modest than the trial numbers suggest.

Green Tea Leaf Extract: One of the most extensively studied natural compounds for weight management. Its active catechin, EGCG (epigallocatechin gallate), in combination with naturally occurring caffeine, activates thermogenesis — the process by which the body generates heat and burns additional calories. A randomized controlled study published in PubMed (Dulloo et al., British Journal of Nutrition, 1999) found a 4% increase in 24-hour energy expenditure and a 10% increase in fat oxidation from green tea extract. A subsequent metabolic chamber study demonstrated that EGCG-caffeine combinations increased 24-hour energy expenditure by approximately 750 kJ compared to placebo. Multiple meta-analyses confirm modest but consistent effects on body weight reduction over time.

Guarana Seed Extract: Native to the Amazon basin, Guarana (Paullinia cupana) is one of the richest natural sources of caffeine, containing approximately 3–4% caffeine in its seeds — roughly double that of coffee beans. Unlike isolated caffeine, guarana’s caffeine is bound to tannins that slow its release into the bloodstream, providing more sustained, gradual energy without the sudden spike and crash. Beyond caffeine, guarana contains theobromine and theophylline, which complement fat-burning pathways, and inhibits phosphodiesterase — increasing adipocyte cAMP levels that stimulate fat breakdown (lipolysis). A published PubMed study with green tea and guarana combined demonstrated significant 24-hour energy expenditure increases. Guarana also has documented antioxidant properties, with a study published in Nutrients showing reduced LDL oxidation in guarana users.

Maca Root Extract: A root vegetable (Lepidium meyenii) native to the Peruvian Andes with a long history of use as a vitality tonic. As an adaptogen, Maca is best evidenced for its effects on energy, mood, and resilience to stress. Multiple human studies have documented improvements in physical and mental energy, and Maca has been studied for its potential role in supporting hormonal balance. Its connection to weight management is primarily through cortisol modulation — chronic stress elevates cortisol, which promotes visceral fat storage. By supporting the body’s stress response, Maca may help reduce this hormonal driver of abdominal fat accumulation. Clinical evidence specifically linking Maca to weight loss is limited; its contribution to LeanRise is primarily as an adaptogenic energy and stress support ingredient.

Grape Seed Extract: A concentrated source of proanthocyanidins (OPCs) — among the most potent plant-based antioxidants known. During active weight loss, the rapid mobilization and burning of stored fat generates increased oxidative stress at the cellular level. Grape Seed Extract helps neutralize these free radicals, protecting cell membranes, blood vessel walls, and metabolic tissues from oxidative damage. It also supports healthy circulation and reduces chronic low-grade inflammation — a hallmark of metabolic syndrome and a physiological barrier to effective fat loss. Research published in Nutrition Journal and multiple peer-reviewed studies documents Grape Seed Extract’s significant antioxidant capacity and anti-inflammatory effects.