SOS is Science

SOS Hydration co-founder Dr Blanca Lizaola Mayo

Dr Blanca Lizaola Mayo, MD

Gastroenterology and Transplant Hepatology Fellow & Co-Founder of SOS Hydration

Medically Formulated

Using the best in medical and sports science, SOS Hydration was engineered by a leading doctor, a former elite athlete, and a retired military officer with the purpose of combating dehydration to improve overall human performance.

Impact of Dehydration

During a normal day we lose about two litres of water just through breathing, sweat and going to the loo. When we exercise, we can lose up to two litres per hour.

While sweating, the two main electrolytes lost are sodium and chloride.

Dehydration results in an increase in cardiovascular strain, with heart rate being shown to increase by 4 beats per minute for each percent loss in body weight. This corresponds with an increase in body temperature and the rate at which glycogen stored in the muscles is consumed.

When we first start to sense thirst, we are already close to 2% dehydrated. This can result in headaches, tiredness and fatigue which are further exacerbated without adequate rehydration and rebalancing of electrolytes.

The Science behind dehydration - SOS Hydration
SOS Hydration

The Solution


When you drink SOS Hydration and it arrives at the first portion of the small bowel, the unique SOS formula activates our bodies' Sodium/Glucose co-transport system. As part of this process, one molecule of sodium is pulled from the small intestine into the blood vessels by a corresponding molecule of glucose. Consequently, due to osmotic forces in the body, water is absorbed as it always follows sodium.

The 'Sodium/Glucose co-transport system' was discovered by the medical community, and is used to combat mild to moderate dehydration, saving millions of lives all over the world. This method of delivery is called Oral Rehydration Therapy (ORT) and is fully endorsed by the World Health Organization (WHO) and UNICEF.

SOS Hydration matches the global standard set by the WHO. We have also been able to lower the osmolarity and stabilize the taste – a complex challenge that no other rehydration drink has currently managed.

Osmolarity is the balance between water and sodium in the body. The normal (isotonic) osmolarity is 290mmol/L. The lower the osmolarity, the faster the body can absorb water. High glucose concentrations can increase the osmolarity of drinks.

SOS’ osmolarity is 230mmol/L, which means we are a hypo-tonic drink. The most effective formula for water-absorption when compared to isotonic and hyper-tonic solutions.

SOS hydration activates the body's sodium/glucose co-transport system

Ingredients with Purpose

SOS Hydration contains the right mix of the right ingredients that your body and mind need

SOS Hydration ingredients include important minerals you lose throughout the day including sodium, potassium, magnesium, zinc, citrate, chloride, the right kind of sugars and malic acid
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