

Firestim
Musclegen Performance Nutrition
Overview
Firestim contains several ingredients with established efficacy for thermogenesis, energy, and modest weight management. However, the use of a proprietary blend for the 'Therm-Efx 4x Caffeine Matrix' and undisclosed dosages for several other active ingredients makes it impossible to verify effective concentrations. While caffeine, green tea, green coffee bean, and cayenne pepper have evidence supporting their roles in metabolism and thermogenesis, the effectiveness of the overall blend is compromised by the lack of transparency in dosing for many components, particularly given the combination of multiple stimulants and diuretics.
The Good
May offer acute energy boost and increased focus due to caffeine.
Some ingredients (Green Tea, Green Coffee Bean, Cayenne Pepper) have evidence supporting modest metabolic and thermogenic effects.
Chromium may assist with blood sugar regulation.
The Bad
Proprietary blend for 'Therm-Efx 4x Caffeine Matrix' hides individual stimulant doses, making it difficult to assess total stimulant load and potential risks.
Many ingredients, such as L-Tyrosine and N-Acetyl L-Carnitine, are significantly underdosed, rendering them unlikely to be effective for their purported benefits.
Combination of multiple stimulants (caffeine, guarana, green tea, green coffee bean, cocoa) can heighten the risk of adverse effects like anxiety, jitters, and elevated heart rate.
Is it for you?
Best For: Athletes, fitness enthusiasts, individuals seeking to increase protein intake
Skip If: You have allergies to dairy or soy (if applicable), or severe kidney conditions.
Ingredients Analysis
Pantothenic Acid
20 mgChromium
200 mcgL-Tyrosine
40 mgGinger Root Powder
20 mgLicorice Root Powder
20 mgN-Acetyl L-Carnitine
25 mgUva Ursi Leaf Powder
25 mgJuniper Berry Powder
25 mgHow to Use
Mix one scoop with 6-8 oz of cold water or your favorite beverage. Consume post-workout or as needed to meet protein requirements.
Daily
Post-workout, Anytime
Mixed with water or milk