Comparison between Medik8 C-Tetra Eye Serum vs. La Roche-Posay Hyalu B5 Hyaluronic Acid Anti-Ageing Serum
Find out which product is better for your skin.
7 Ingredients 22
Positive Effects
ECO Metrics
Concerns
Components by Skin Type
Detailed view
#1Simmondsia Chinensis (Jojoba) Seed Oil
![Good for dry skin](https://skinsignal.com/api/web/image/layout/dry_good.png?w=30&q=50)
Simmondsia Chinensis (Jojoba) Seed Oil is a great vegetable oil to counter dryness. It reduces inflammation and it’s a very nice ingredient for people with redness, eczema, and rosacea. It’s accepted very well by humans skin because its chemical structure is very similar to sebum. That’s why it will hardly provoke any allergy. It’s a very good helper for people with dry skin.
#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.
#2Cyclopentasiloxane
Cyclopentasiloxane is a fluid silicone. It’s non-greasy and doesn’t have any scent or color. It evaporates pretty fast which makes this ingredient essential when it comes to making products that have to dry quickly. It also gives a nice silky feeling when you apply the product to the skin and hair. It leaves a thin film that protects the skin after evaporation.
Cyclopentasiloxane is chemically neutral, meaning it doesn’t react with other components.
#2Glycerin
![Good for dry skin](https://skinsignal.com/api/web/image/layout/dry_good.png?w=30&q=50)
Glycerin is one of the most outstanding and helpful skincare components. It's used in many skincare products because it works and provides notable results. It's one of the best moisturizers. Molecules of Glycerin can absorb water and deliver it into deep layers of the skin making it hydrated.
The component is researched very well. Many scientific researches confirm the safety and the efficiency of the component.
#3Cyclohexasiloxane
#3Alcohol Denatured
![Bad for dry skin](https://skinsignal.com/api/web/image/layout/dry_bad.png?w=30&q=50)
Alcohol Denatured is a great bacteria killer. Manufacturers often put it inside products to increase their shelf life.
It’s one of the most harmful alcohols used in skincare. You should use it carefully, especially if you have dry skin. It removes oily barrier from the surface of your skin making it less protected and causing dryness. We advise you to pay attention to the position of this component in a formulation. If it stays below the 6th position it will hardly harm your skin. We also recommend testing the product first before application. If you feel a “cooling effect” it means the product contains a lot of alcohol and it's better to be careful with it.
#4Tetrahexyldecyl Ascorbate
#4Propylene Glycol
![Good for dry skin](https://skinsignal.com/api/web/image/layout/dry_good.png?w=30&q=50)
Propylene Glycol is a useful componet with many positive effects. It’s a very good moisturizer. It helps to deliver ingredients into deeper layers of the skin. It creates a protective layer on the skin preventing water loss. The component is researched very well and doesn’t have notable side effects. It’s used even for making food.
#5Tocopheryl Acetate
Tocopheryl Acetate is a form of Vitamine E. It’s used as an alternative to Tocopherol because it is more stable in the formulation. It has all the positive effects of Tocopherol plus better stability. It’s a brilliant component. It conditions and nourishes the skin helping it to resist aging. It also helps to protect the skin from the sun. High concentrations of Tocopheryl Acetate can lead to irritation and allergic reactions.
#5Panthenol
![Good for dry skin](https://skinsignal.com/api/web/image/layout/dry_good.png?w=30&q=50)
Panthenol is a proud member of a league of the best-performing components. It's a stable form of Vitamin B5 and is also known as Pro-Vitamin B5. It’s a very good and effective component for hydration, healing, and soothing irritated skin. It works so soft and gentle that it’s even recommended for people with skin problems like eczema.
In haircare products it’s used for protecting the fiber. It’s researched very well and doesn’t have any negative side effects.