Firsyly, the customer service of trendstyle is so good, the product delivery is on time and it ensures the safety of the product. Thus no breakage or leakage. Honestly speaking thjs hair serum is so good, the best one I've used so far. It's a really light weight water based hair serum that fulfils what it promises. It doesn't leaves any greasy residue or any sort of build up. I'm in love with the ordinary multi peptide hair serum. However, I wish if there could be other products of this brand in hair care range such as shampoo and conditioners. But all in all, this product is worth trying.