Deodorising ingredients with no microbiome impact

Human perspiration has two essential functions. Eccrine sweat dissipates heat generated from physical activity, fever or elevated environmental temperatures, thereby preventing heatstroke. Apocrine sweat, on the other hand, is the source of emotional sweating, thus serving as a medium for interpersonal communication. 

Regardless of its source, fresh sweat does not smell. Eccrine sweat does not contain any compounds that can lead to odour by itself, as it is mainly composed of water, electrolytes, moisturising factors and free amino acids

Apocrine sweat, on the other hand, contains complex molecules like sebaceous or apocrine lipids, fatty acids, proteins, and various glutamine- and cysteine conjugates, as well as pheromones. The human underarm microbiota flourishes by degrading this nutrient-rich mixture, releasing the smaller end-products. These are often small enough to be volatile and thus are perceivable for the surroundings, leading to the typical odour.