Comparison between Lazartigue Stronger Hair Serum vs. Kerastase Serum Extentioniste
Find out which product is better for your skin.
29 Ingredients 30
Positive Effects
ECO Metrics
Concerns
Components by Skin Type
Detailed view
#1Water
Water is a great solvent. It’s neutral and doesn’t provide any strong positive or negative effects. It just helps components to mix better and to transport active components.
#2Propanediol
Propanediol is a good solvent, emollient and humectant. It helps to moisturize the skin and prevent moisture loss. In haircare products, it conditions hair and improves absorption of the product.
#2Polyquaternium-37
#3Butylene Glycol
![Good for dry skin](https://skinsignal.com/api/web/image/layout/dry_good.png?w=30&q=50)
Butylene Glycol is a very popular synthetic alcohol. It helps the product to absorb deeper and faster. It is also a solvent for other ingredients. As for the skin benefits, it helps to attract water and helps to make the skin softer.
Unlike many other “Glycols”, it is not harmful and that's why it is used in many products. It was approved by US FDA and US EPA for usage.
#3Paraffinum Liquidum/mineral Oil
#4Polysorbate-20
Polysorbate 20 doesn’t have any notable skin benefits but is used in cosmetics quite often. Manufacturers use it for formulation purposes. It improves the scent, texture, and feel of the product.
#4Amodimethicone
#5Caprylyl/Capryl Glucoside
#5Polysorbate-20
Polysorbate 20 doesn’t have any notable skin benefits but is used in cosmetics quite often. Manufacturers use it for formulation purposes. It improves the scent, texture, and feel of the product.