I was fortunate enough to receive a 15ml sample of this to test. I used this hydrating serum twice a day for 2 weeks. I applied the serum using just my fingertips onto my face and neck after cleansing and followed it with a moisturiser. This serum really helped lock moisture into my skin without causing a breakout which can happen with other heavier products. After the 2 week trial my skin feels plumper and more supple than before. I will definitely continue using it.