Comparison between Medik8 C-Tetra vs. HydroPeptide Firma-Bright 20 Vitamin C Booster

Find out which product is better for your skin.

8 Ingredients 26

1
Simmondsia Chinensis (Jojoba) Seed Oil
1
Water
2
Cyclopentasiloxane
2
Sodium Ascorbyl Phosphate
3
Cyclohexasiloxane
3
Pentylene Glycol
4
Tetrahexyldecyl Ascorbate
4
Glycerin
5
Tocopheryl Acetate
5
Niacinamide
6
PPG-12/Smdi Copolymer
6
Propanediol
7
Citrus Grandis (Grapefruit) Peel Oil
7
Carrageenan
8
Limonene
8
Erythritol
-- Show others --
Uniqueness8 out of 8
100.0%
Uniqueness26 out of 26
100.0%

Positive Effects

Find out what good effects the product has

ECO Metrics

Find out how eco-friendly the components are
Vegan
No
No
Cruelty free
No
No
Reef friendly
Yes
Yes
Ozone layer safe
Yes
Yes
Organic score
natural
2 out of 8
25%
chemical
5 out of 8
63%
natural
9 out of 26
35%
chemical
11 out of 26
42%

Concerns

Pay attention to these components
-- Extra information --

Components by Skin Type

Find out what components are good or bad for your skin type
Dry skin
Positive: 1Negative: 0
Simmondsia Chinensis (Jojoba) Seed Oil#1
Oily skin
Positive: 0Negative: 0
Sensitive skin
Positive: 0Negative: 1
Limonene#8
Dry skin
Positive: 4Negative: 0
Glycerin#4Sodium PCA#91,2-Hexanediol#11Sodium Hyaluronate#17
Oily skin
Positive: 0Negative: 0
Sensitive skin
Positive: 0Negative: 0

Detailed view

Medik8 C-Tetra vs. HydroPeptide Firma-Bright 20 Vitamin C Booster
Position 1

#1Simmondsia Chinensis (Jojoba) Seed Oil

Origin: natural
Role: Skin conditioning agent, Emollient, Hair conditioning, Viscosity controlling agent
Antioxidants
Malassezia unsafe
Comedogenic rating [ 2 ]
EWG Rating [ 1 ]
CIR Rating [ A ]
Good for dry skin
Good for dry skin

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.

-- versus --

#1Water

Origin: natural
Role: Solvent
EWG Rating [ 1 ]

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.

Position 2

#2Cyclopentasiloxane

Origin: chemical
Role: Skin conditioning agent, Emollient, Hair conditioning, Solvent
Protection
Silicones
EWG Rating [ 3 ]
CIR Rating [ A ]

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.

-- versus --

#2Sodium Ascorbyl Phosphate

Origin: No information
Role: No information
EWG Rating [ 1 ]
CIR Rating [ A ]
Position 3

#3Cyclohexasiloxane

Origin: chemical
Role: Skin conditioning agent, Emollient, Hair conditioning, Solvent
Hair conditioning
EWG Rating [ 2 ]
CIR Rating [ A ]
-- versus --

#3Pentylene Glycol

Origin: chemical
Role: Skin conditioning agent, Solvent
Moisturizing
Hair conditioning
EWG Rating [ 1 ]
CIR Rating [ A ]

Pentylene Glycol is a great replacement for Propylene Glycol. It has very similar characteristics but it’s derived from plants (usually from corn). Natural cosmetics lovers will find this component very useful. It enhances the moisturizing effect of cosmetic products, improves the efficiency of preservatives and it’s an effective emulsifier. It’s approved by ECOCERT and COSMOS so it’s considered to be 100% safe and can be used in vegan products.

Position 4

#4Tetrahexyldecyl Ascorbate

Origin: chemical
Role: Skin conditioning agent
Antioxidants
UV Protection
Anti-aging
Lightening
Protection
EWG Rating [ 1 ]
-- versus --

#4Glycerin

Origin: natural
Role: Fragrance ingredient, Hair conditioning, Humectant, Solvent, Viscosity controlling agent
Moisturizing
Softening
Hair structure improvement
Hair gloss
EWG Rating [ 1 ]
CIR Rating [ A ]
Good for dry skin
Good for dry skin

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.

Position 5

#5Tocopheryl Acetate

Origin: chemical
Role: Skin conditioning agent
Antioxidants
Softening
Nutrifying
EWG Rating [ 2 ]
CIR Rating [ A ]

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.

-- versus --

#5Niacinamide

Origin: chemical
Role: Skin conditioning agent, Hair conditioning, Smoothing
Antioxidants
Acne fighting
Pore Shrinking
Soothing
Anti-aging
Lightening
Elasticity improvement
EWG Rating [ 1 ]

Niacinamide is a form of Vitamin B3 and it’s a superman in cosmetics. This ingredient is researched very well. It has a lot of positive reviews from scientists and experts. It's very important for healthy skin. The lack of this vitamin can cause dryness, itching, and sun sensitivity. The component removes small wrinkles and fine lines, heals wounds, and prevents the forming of cancer cells. It also makes the skin tone even by removing dark spots. It increases ceramide synthesis which increases the overall health of your skin. It fights acne and lowers pores.

Researches say that 4-5% of Niacinamide is the most effective concentration for skincare use.

Skin Signal
2023 - 2024

The most advanced ingredient checker and cosmetics analyzer. Take a look "inside" the skincare products you use every day.

Disclaimer: All the information on the website is not a medical advice. Visit a doctor if you have problems.

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