Stim Free Pre Workout - Sour Grape

Transparent Labs creates science-backed supplements to optimise health and performance. Each formula delivers clinically effective doses with natural ingredients—free from artificial additives, fillers, or hidden blends. Plus, all their products undego rigorous testing so you get pure, potent, and effective supplements to support your health and fitness goals.

Founded in 2015, Transparent Labs was established by John Williams to set a new standard in supplement quality. The brand remains dedicated to research-driven, high-quality formulations with honest labelling, ensuring individuals seeking optimal wellness have access to supplements they can trust.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

Sodium (as Himalavan Pink Salt), Potassium (as Potassium Chloride), Citrulline Malate 2:1, Beta-Alanine, BetaPure™ Betaine Anhydrous, Taurine, L-Tyrosine, elevATP (Ancient Peat; Apple Extract), Senactiv (Panax notoginseng, Rosa roxburghi), Bioperine (Black Pepper (Fruit) Extract), Huperzine A, Natural Flavors (1,606mg), Stevia Extract (450mg), Silicon Dioxide (310mg), Calcium Silicate (310mg).

Shipping

At Healf, we prioritize safe and fast delivery for all our customers. Our carefully selected couriers are Royal Mail and DPD.

UK standard delivery

Enjoy free standard delivery on orders above £50, this option usually requires 2-3 working days. If your order is under £50, this delivery option is available for £3.99.

Next working day

For when you need our products urgently, we offer next working day shipping for £5.99. For orders placed before 12.00, we will ship it the same day to ensure you receive your order the next working day.

International

International deliveries can take 7 working days, and up to 4 weeks. The cost is £22.99 for orders below £50, £49.95 for orders above.

Returns

If for any reason you are not satisfied with your order, we provide free 365-day UK returns for all our customers. To initiate your return, simply contact us at team@healf.com, and we'll send you a return slip and help arrange a collection. The item you return must be sent in the same condition as received and inside the original packaging. Once received, we will notify you via email.

For international returns, we unfortunately do not cover the cost. However, we work with an array of carriers and can offer self-posting returns for customers shopping from outside the UK.

Mix 6-8 fl. oz of water with 1/2 scoop 20-30 minutes before training to assess tolerance. For a more intense session, mix 12-16 fl. oz of water with 1 full scoop.

Additional Information:

Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.

We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.