La Roche-Posay Serozinc Ingredients + Evidence-Based Efficacy Review

La Roche-Posay Serozinc Ingredients

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Full Ingredient List (INCI):

Water, Zinc Sulfate, Sodium Chloride

Review

Does La Roche-Posay Serozinc Work?

Based on the ingredient list analysis by CreamScan, we could not confirm any moisturizing or anti-wrinkle benefits delivered by La Roche-Posay Serozinc. However, you can explore the roles of specific ingredients in the Ingredient Breakdown section below.

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Est. % The Estimated % is our algorithm-based assumption about an ingredient's concentration in a formula. Learn more The Estimated % is our algorithm-based assumption about an ingredient's concentration in a formula. Learn more	Ingredient	Origin	Functions
98	Water The most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients. Water The most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.	Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water.	Formula helper Solvent – a liquid that dissolves other ingredients. Formula helper Solvent – a liquid that dissolves other ingredients.
1	Zinc Sulfate Zinc Sulfate	Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure.	Anti-Pigmentation Anti-pigmentation ingredients help to even skin tone by reducing the intensity of dark spots and hyperpigmentation. Anti-Pigmentation Anti-pigmentation ingredients help to even skin tone by reducing the intensity of dark spots and hyperpigmentation. Antimicrobial Antimicrobials prevent the growth of harmful microorganisms on the skin. Antimicrobial Antimicrobials prevent the growth of harmful microorganisms on the skin. Astringent Astringent ingredients provide the skin with a tightened feeling, help to reduce the appearance of large pores, and assist in the healing of small cuts and wounds. Astringent Astringent ingredients provide the skin with a tightened feeling, help to reduce the appearance of large pores, and assist in the healing of small cuts and wounds.
1	Sodium Chloride You’re definitely familiar with sodium chloride, even if you don’t think you are. It’s table salt! Salt works well with some cleansing ingredients (surfactants) to thicken them into gels. It also acts as a stabilizer for water-in-oil emulsions. Sodium Chloride You’re definitely familiar with sodium chloride, even if you don’t think you are. It’s table salt! Salt works well with some cleansing ingredients (surfactants) to thicken them into gels. It also acts as a stabilizer for water-in-oil emulsions.	Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure.	Fragrance Fragrance ingredients add scent to a product or hide ('mask') the undesired aroma of other ingredients. Fragrance Fragrance ingredients add scent to a product or hide ('mask') the undesired aroma of other ingredients. Flavor Flavor ingredients bring sweetness to a product or are used to recreate various tastes. Flavor Flavor ingredients bring sweetness to a product or are used to recreate various tastes. Formula helper Bulking – increases the volume of a product. Viscosity controlling – changes the thickness of a product. Formula helper Bulking – increases the volume of a product. Viscosity controlling – changes the thickness of a product.

Water

Function:

Origin:

Zinc Sulfate

Function:

Origin:

Sodium Chloride

Function:

Origin:

Ratings

None

Benchmark

None

Benchmark

Moisturizing rating

0.0

Ingredient		Est. %	Benchmark Sciense based points to which we compare all humectants and all occlusives in a product to calculate its Humectancy and Occlusivity. Sciense based points to which we compare all humectants and all occlusives in a product to calculate its Humectancy and Occlusivity.	Raiting
Humectancy	All humectants	0.0	10	0.0
	None
Occlusivity	All occlusives	0.0	20	0.0
	None
Moisturizing rating				0.0

Ingredient	Est. %	Benchmark According to various studies, a formula made up of 10% humectants will significantly increase skin hydration. Some studies also suggest that any further icrease in the consentration of humectants does not translate inty any more hydration and may even be dehydrating. To achieve maximum Humectancy, the product should have humectants with a total score of 10 and more. According to various studies, a formula made up of 10% humectants will significantly increase skin hydration. Some studies also suggest that any further icrease in the consentration of humectants does not translate inty any more hydration and may even be dehydrating. To achieve maximum Humectancy, the product should have humectants with a total score of 10 and more.	Humectancy
None
All humectants	0.0	10	0.0

None

Benchmark

Ingredient	Est. %	Benchmark The most occlusive product possible is 100% petrolatum (hello Vaseline Jelly). According to studies, hovewer, even 10% petrolatum can achieve almost the same mosturizing effect. The occlusive properties of petrolatum are at least twice as superior as other occlusive ingredients. This is why, in order to match the moisturizing efficacy of 10% petrolatum, a product needs to contain at least 20% of other occlusives. Our benchmark for maximum Occlusivity is 20 (and the petrolatum score is always doubled). The most occlusive product possible is 100% petrolatum (hello Vaseline Jelly). According to studies, hovewer, even 10% petrolatum can achieve almost the same mosturizing effect. The occlusive properties of petrolatum are at least twice as superior as other occlusive ingredients. This is why, in order to match the moisturizing efficacy of 10% petrolatum, a product needs to contain at least 20% of other occlusives. Our benchmark for maximum Occlusivity is 20 (and the petrolatum score is always doubled).	Occlusivity
None
All occlusives	0.0	20	0.0

None

Benchmark

Ingredient	Ingredient anti-wrinkle power Shows on a scale of 0-10 how effective an ingredient is at reducing wrinkles. Both the Reported Efficacy of the ingredient and the Strength of Evidence are taken into account. Shows on a scale of 0-10 how effective an ingredient is at reducing wrinkles. Both the Reported Efficacy of the ingredient and the Strength of Evidence are taken into account.	when present at, %	in this formula est. %	Rating
None
Total				0

None

Anti-wrinkle rating

Ingredient	Est. %	Benchmark It differs from one antioxidant ingredient to another, but, on average, the research suggests that topically applied antioxidants are effective in consentrations of 3% or above. Any product with a total antioxidant score of 3 or more is considered to be reach in antioxidants. It differs from one antioxidant ingredient to another, but, on average, the research suggests that topically applied antioxidants are effective in consentrations of 3% or above. Any product with a total antioxidant score of 3 or more is considered to be reach in antioxidants.	Rich in Antioxidants
None
All antioxidants	0	3	No

None

Benchmark

Ingredient	Est. %	Benchmark The effective concentration of soothing ingredients varies, but we consider a product rich in soothing ingredients if their estimated concentration is equal to or higher than 5%. The effective concentration of soothing ingredients varies, but we consider a product rich in soothing ingredients if their estimated concentration is equal to or higher than 5%.	Rich in Soothing
None
All soothing	0	5	No

None

Benchmark

Ingredients explained

Water
Est. %	98
Function	Solvent Solvent – a liquid that dissolves other ingredients. Solvent Solvent – a liquid that dissolves other ingredients.
Origin	Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water.

The most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.

Zinc Sulfate
Est. %	1
Function	Anti-Pigmentation, Anti-pigmentation ingredients help to even skin tone by reducing the intensity of dark spots and hyperpigmentation. Anti-Pigmentation, Anti-pigmentation ingredients help to even skin tone by reducing the intensity of dark spots and hyperpigmentation. Antimicrobial, Antimicrobials prevent the growth of harmful microorganisms on the skin. Antimicrobial, Antimicrobials prevent the growth of harmful microorganisms on the skin. Astringent Astringent ingredients provide the skin with a tightened feeling, help to reduce the appearance of large pores, and assist in the healing of small cuts and wounds. Astringent Astringent ingredients provide the skin with a tightened feeling, help to reduce the appearance of large pores, and assist in the healing of small cuts and wounds.
Origin	Naturally occurring, These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring, These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure.

Sodium Chloride
Est. %	1
Function	Fragrance, Fragrance ingredients add scent to a product or hide ('mask') the undesired aroma of other ingredients. Fragrance, Fragrance ingredients add scent to a product or hide ('mask') the undesired aroma of other ingredients. Flavor, Flavor ingredients bring sweetness to a product or are used to recreate various tastes. Flavor, Flavor ingredients bring sweetness to a product or are used to recreate various tastes. Bulking, Bulking – increases the volume of a product. Bulking, Bulking – increases the volume of a product. Viscosity Controlling Viscosity controlling – changes the thickness of a product. Viscosity Controlling Viscosity controlling – changes the thickness of a product.
Origin	Naturally occurring, These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Naturally occurring, These are ingredients initially present in nature, such as elements (Zinc, Gold, or Silver), minerals, or water. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure. Synthetic All kinds of ingredients formulated or produced by a chemical process, or those that have a chemical modification in their structure.

You’re definitely familiar with sodium chloride, even if you don’t think you are. It’s table salt! Salt works well with some cleansing ingredients (surfactants) to thicken them into gels. It also acts as a stabilizer for water-in-oil emulsions.