
"Very quick delivery. Used 3 times, each order arrived the next day before 12:00. Product quality is exactly as described."
"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."
"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."
BioTechUSA ThermoDrineLiquid, Grapefruit - 500 ml
BioTechUSA ThermoDrineLiquid Grapefruit is a liquid supplement that helps fat metabolism and energy during training, keeping you on track with your weight management goals.
Purchase options
Subscribe & save
Save 5%Fast delivery · Cancel anytime
- Easy Pause or Cancel
- Best Price Guarantee
- 60-Day Returns
- Priority Support
One-time purchase
Standard price, no subscription
Quantity
100% Money back guarantee, no questions asked
Secure Transaction
BioTechUSA ThermoDrineLiquid Grapefruit is a liquid supplement that helps fat metabolism and energy during training, keeping you on track with your weight management goals. A liquid delivery system means quick absorption, so you feel the effects sooner and can stay consistent with your training plan. BioTechUSA's careful blend of active nutrients and vitamins keeps quality and safety at the heart of every bottle.
Available Sizes & Variants:
500 ml bottle – provides 50 servings
Benefits & Features:
- Helps fat burn during exercise.
- Liquid delivery supports rapid absorption, helping you feel results sooner.
- Caffeine gives a noticeable energy boost and thermogenesis, while choline and B vitamins support normal energy-yielding metabolism, helping you train with focus and consistency.
- No added sugar makes it easy to fit into most dieting plans.
- Includes a multi vitamin complex to support liver health and normal lipid metabolism, helping you stay balanced while pursuing daily activity and training.
BioTechUSA has built a reputation for safe, carefully selected nutrients, and ThermoDrineLiquid Grapefruit keeps that promise with a liquid delivery system for rapid absorption and no added sugar. Each 500 ml bottle provides 50 servings, pairing L-Carnitine and green tea leaf extract with caffeine and a broad vitamin mix to support energy yielding metabolism and liver function. For customers exploring broader wellness aims, like a vitamin d diet or probiotic routines such as bio gaia probiotic, some also research the best probiotic for weight loss.
United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched 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 14 days in the same original and unopened packaging. Subject to T&C's.
Welzo is a UK-based health platform. Orders ship from the UK.
Please consult the product packaging for accurate instructions on how to use the product.
| Amount Per Serving | %RI* | |
|---|---|---|
| L-Carnitine | 300 mg | |
| Choline Bitartrate | 115 mg | |
| Inositol | 50 mg | |
| Glucuronolactone | 50 mg | |
| Taurine | 100 mg | |
| Caffeine | 80 mg | |
| Green Tea Extract | 300 mg | |
| Inulin | 100 mg | |
| Vitamin E | 3 mg | 25% |
| Vitamin C | 18 mg | 22% |
| Vitamin B1 | 0.42 mg | 38% |
| Riboflavin | 0.48 mg | 34% |
| Niacin (as nicotinamide) | 5.4 mg | 33% |
| Pantothenic Acid | 1.8 mg | 30% |
| Vitamin B6 | 0.6 mg | 42% |
| Vitamin B12 | 0.38 µg | 15% |
| Biotin | 45 µg | 90% |
| Folic Acid | 60 µg | 30% |
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
L-Carnitine is a naturally occurring amino acid derivative that helps move fatty acids into cell mitochondria to be used for energy production.
In this liquid blend, L-Carnitine is supplied as the active nutrient to back fat metabolism during workouts and daily energy needs.
What Does L-Carnitine Do?
L-Carnitine helps with normal fat metabolism by letting fatty acids enter mitochondria for energy generation, supporting the body's energy-producing processes during exercise and everyday life.
*This product is not intended to diagnose, treat, cure, or prevent any disease.
BioTechUSA is Welzo chosen for this supplement because the brand sits on a foundation of safe, carefully selected ingredients, aligning with our commitment to quality from the ground up. This emphasis on ingredient integrity fuels our confidence in the manufacturing philosophy behind ThermoDrine Liquid and the trust we place in its delivery system for rapid absorption.
Our team evaluated BioTechUSA through our standard vetting criteria, consulting our medical team and referencing our ingredient quality and purity standards to ensure rigorous oversight of safety and composition. This collaboration ensures a consistent framework for assessing brand credibility, heritage in the sport and wellness space, and commitment to product integrity. This partnership is reinforced by our ongoing review of how the brand maintains high-quality sourcing and formulation practices.
ThermoDrine Liquid is a product that benefits from BioTechUSA’s demonstrated focus on safe ingredients and thoughtful formulation design, delivering a liquid option with a structured blend designed to support energy and metabolism during training while maintaining a clear no added sugar approach. This aligns with Welzo’s standards and provides customers with strong value and reassurance, backed by our team’s assessment and the brand’s quality commitments
Part of the Welzo System™
Test, supplement, enhance, and move, all in one place.
Frequently Asked Questions
Everything you need to know about this product.



