Distilled Water

Although water (aqua, l’eau) is the predominant ingredient in facial care products, only the The Biology Serum™ uses 100% pure water - clinical grade sterile distilled water.  

The skincare industry standard is to use lower-cost natural mineral or de-ionised water with varying levels of impurities or contaminants. On production lines skincare products will be further exposed to contaminants, so a preservative system will be added. The way skincare is made means it’s pointless for this industry to use pure water.  

Our zero-contamination lab processing and ingredient standard means The Biology Serum is the only facial care product able to use water that’s actually 100% pure. 

Pure water also improves the stability of active ingredients and prevents degradation over time. This is particularly important for our sensitive active ingredients as it helps to maintain their potency and effectiveness.