Gaspari Nutrition Sizeon Max Leistung 1,5 kg

Vitamin C (As Ascorbic Acid): 60mg Thiamin (As Thiamin Hydrochloride): 10mg Riboflavin (As Riboflavin-5-Phosphate): 7.6mg Niacin (As Niacinamide): 50mg Vitamin B6 (As Pyridoxine-5-Phosphate): 16.8mg Folate (As Folic Acid): 200mcg Vitamin B12 (As Methylcobalamin): 75mcg Pantothenic Acid (As D-Calcium Pantothenate): 9mg Calcium: 51mg Phosphorus: 103mg Magnesium: 45mg Sodium: 280mg Potassium: 125mg SizeOn Proprietary Blend: 61g Outlast Insutropin Matrix: Palatinose (Isomaltulose), D-Glucose, Trehalose, Pterostilben. Proteinsynthese Beschleunigungsmatrix: Molkenproteinhydrolyzat, L-Leucin (5G), L-Isoleucin, L-Valin, L-Anithin-L-Aspartat. Phosphodrive -Ausdauerkomplex: Creapur (Kreatinmonohydrat), Kreatin -Magnapower (Magnesium -Kreatin -Chelat), Dinatriumkreatinphosphat. Osmodrive fortschrittlicher Hydratationskomplex: L-Taurin, Natriumglycerophosphat, Calciumglycerophosphat, Kaliumglycerophosphat, Sustamin (L-Alanyl-L-Glutamin), Magnesiumglycylglutamin. Andere Malinsäure, Zitronensäure, natürliche und künstliche Aromen, Salz, Kieselsäure, Sucralose, FD & C Red Nr. 40, Acesulfame Kalium.

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.

The Active Ingredient Is: Leucine (L-Leucine)

Leucine is an essential amino acid that plays a key role in initiating muscle protein synthesis. It is naturally present in dietary proteins and is used in supplements to support muscle building processes during and after activity.

This form focuses on the amino acid, commonly sourced from protein and used in supplements to provide rapid availability for muscular processes.

What Does Leucine Do?

Leucine contributes to muscle protein synthesis by activating the mTOR pathway, supporting normal cellular growth and recovery during exercise, as recognised in high-level nutrition guidance.

Studies show this mechanism can help support anabolic signalling and muscle maintenance in the context of regular training, with the effect described as part of normal physiological protein metabolism.

Gaspari Nutrition is Welzo's chosen partner for SizeOn Max Performance because the brand consistently demonstrates a mission‑led approach to fast‑acting, high‑absorption formulations. This alignment with rapid delivery and multi‑pathway muscle support mirrors our commitment to products that work when you train, using whey protein hydrolysate for quick amino acid availability and a creatine blend to sustain performance during demanding sessions.

The brand supports muscle growth and recovery through clear, evidence‑driven mechanisms such as leucine‑driven protein synthesis and creatine replenishment, which fit well with Welzo’s emphasis on potency and practicality. This credibility is reinforced by their specialised intra‑workout focus, which helps ensure the product is purpose‑built for athletes and trainees seeking immediate effects during training.

Welzo selected Gaspari based on our rigorous evaluation of ingredient synergy, manufacturing philosophy, and product relevance to this supplement type. This partnership is underpinned by our team’s review and ongoing quality checks, reinforced by Welzo's healthcare professionals and our rigorous testing protocols.