Key Benefits

• 100mg of natural caffeine for a gentle energy lift.

• Refreshing blue raspberry flavour to brighten your routine.

• Easy to mix—perfect for your pre-workout ritual.

• Features a blend of amino acids and botanicals.

Start your session feeling ready. Stim Booster – Blue Raspberry brings together L-Tyrosine, nooLVL, Taurine, AlphaSize, and PurCaf Organic Caffeine for a flavourful pre-workout pick-me-up. Enjoy as part of your fitness routine whenever you want a little extra motivation.

What's inside?

L-tyrosine 1000mg: An amino acid, included for your pre-workout needs.

nooLVL, 800mg: A stim-free nootropic blend, designed for versatility.

Taurine, 500mg: An amino acid, popular in active lifestyles.

AlphaSize, 300mg: A source of choline, an essential nutrient.

PurCaf, 100mg: Natural caffeine from green coffee beans for a smooth boost.

Transparent Labs creates science-backed supplements to complement your healthy lifestyle. 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.

Blue Spirulina (20mg), Blue Spirulina (35mg), L-Tyrosine, Noolvl® (Inositol-Enhanced Bonded Arginine Silicate), Taurine, Alphasize® Alpha Gpc 50%, Purcaf® Organic Caffeine (from Green Coffee Bean), Acidity Regulator (Citric Acid (600mg)), Acidity Regulator (Malic Acid (578mg)), Sweetener (Stevia Extract (210mg)), Anti-Caking Agent (Calcium Silicate (150mg)), Anti-Caking Agent (Silicon Dioxide (150mg)), Citrulline Malate 2:1, Beta-Alanine, Betaine Anhydrous (Betapure™), Natural Caffeine (from Green Coffee Bean) (Coffea Robusta) (Fruit), L-Theanine, Potassium (as Potassium Chloride), Theobromine, Infinergy™ (Dicaffeine Malate), Senactiv™ (Panax Notoginseng, Rosa Roxburghii), Zinc (as Zinc Chelate), Vitamin B6 (as Pyridoxal-5-Phosphate), Bioperine® (Black Pepper (Piper Nigrum) Extract (Fruit)), Boron (as Boron Citrate), Vitamin B12 (as Methylcobalamin), Sweetener (Stevia Extract (475mg)), Anti-Caking Agent (Calcium Silicate (430mg)), Anti-Caking Agent (Silicon Dioxide (430mg)), Acidity Regulator (Malic Acid (100mg)), Natural Flavours (1G), Natural Flavours (520mg)

As a dietary supplement, mix one scoop with 12-16oz of water or with your favourite pre-workout beverage 30-40 minutes before a workout.

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.