Olimp Nutrition Thermo Stim Hardcore is a fat burner that drives quicker heat production and energy, backed by a long standing European reputation for pharmaceutical grade manufacturing. This multi ingredient formula targets energy, focus, and fat metabolism, powered by caffeine from guarana and capsaicin from cayenne pepper to help you train harder. Trust is built by a brand with decades in sport nutrition and pharmaceutical grade manufacturing.

Available Sizes & Variants:

60 capsules – a handy daily dose for a month of training.

Benefits & Features:

• Boosts energy to power workouts with caffeine.
• Supports fat metabolism through a blend of capsaicin and citrus polyphenols to help you push yourself harder.
• Contains Sinetrol and guarana for a steady energy release during long sessions.
• The dual ThermEnergy Diffuse System and the F.A.T. Destroyer System work together to maximise thermogenic pathways, helping you stay consistent with fat burning goals while maintaining focus during tough sessions.
• Vitamin C and niacin support nutrient metabolism and overall energy during workouts.

Olimp Nutrition has stood at the crossroads of sport and science for decades in Europe, earning trust from athletes with pharmaceutical grade manufacturing and rigorous tested ingredients. This formula blends ginger extract, cayenne pepper extract, raspberry extract, black pepper extract and guarana with Sinetrol, cocoa extract and a dose of caffeine, all supported by vitamin C and niacin. The product also features two proprietary systems: ThermEnergy Diffuse System and F.A.T. Destroyer System, designed to maximise thermogenesis and fat oxidation. Athletes often pair it with protein shakes for muscle gain to support training goals.

ThermEnergy Diffuse System, Ginger extract, of which: gingerols, Extract of Cayenne pepper, of which: capsaicin, Raspberry extract, of which: raspberry ketones, Extract of black pepper, of which: piperine, F.A.T. Destroyer System, Guarana extract, of which: caffeine, Sinetrol, Cocoa extract, of which: teobromin, Caffeine, Vitamin C, Niacin, ThermEnergy Diffuse System, Ginger extract, of which: gingerols, Extract of Cayenne pepper, of which: capsaicin, Raspberry extract, of which: raspberry ketones, Extract of black pepper, of which: piperine, F.A.T. Destroyer System, Guarana extract, of which: caffeine, Sinetrol, Cocoa extract, of which: teobromin, Caffeine, Vitamin C, Niacin

• GTIN: 5901330039416
• Manufacturer: Olimp Nutrition
• Categories: Best SellersOlimp Sport NutritionSports SupplementsSports Supplements Black Friday Sale
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Recommended use: Take 1-2 capsules daily with plenty of water. Consume one capsule approximately 30 minutes before breakfast and another before training. Do not exceed the recommended daily dose. Food supplements should not be used as a substitute for a varied and balanced diet. A varied and balanced diet and a healthy lifestyle are recommended. Store in a cool, dry place, out of reach of children. Warnings: High caffeine content (250 mg/2 capsules). Not recommended for use by children, pregnant or breastfeeding women, or individuals with heart diseases, hypertension, or hypersensitivity to any of the constituents of the preparation.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Caffeine (Anhydrous)

Caffeine acts as a natural stimulant, often used to fuel mental and physical energy and alertness. This variant is anhydrous caffeine, a compact source frequently included in supplements with other ingredients to help metabolic activity.

This blend contains caffeine from various sources, and it helps support energy and fat metabolism during activity.

What Does Caffeine (Anhydrous) Do?

Caffeine participates in boosting energy expenditure and fat oxidation, and it may support training performance, in line with dietary guidance. These effects appear in studies examining caffeine's role in metabolism and exercise outcomes.

Dr. Higgins from Harvard University found that caffeine can boost energy expenditure and fat oxidation, helping metabolic support during physical activity.

This supplement isn't meant to diagnose, treat, cure, or prevent any illness.

Olimp Nutrition is Welzo's picked partner for this supplement, due to a well-established reputation in sports nutrition and a clear commitment to pharmaceutical‑grade manufacturing. This brand is broadly recognised by athletes in endurance and strength sports, with years of market presence and a track record of safe and tested ingredients that are produced to high standards. Our assessment highlighted Olimp Nutrition as a trusted specialist in sports performance formulations, supported by endorsements from certified trainers and sport-focused retailers, reinforcing their trusted standing in the industry. This brand was carefully assessed by Welzo's healthcare professionals to ensure compliance with the rigorous standards we enforce.

The product matches Olimp Nutrition's strength as a multi‑ingredient thermogenic blend built for energy and metabolism support, including caffeine sources and botanical actives that fit with their established approach to performance nutrition. Welzo’s robust, team-based evaluation helps the partnership provides consistent quality and value for customers.