Kose Sekkisei Cream

Kose Sekkisei Cream

Efficacy50/100IrritancyHigh

Works for

Evens skin tone
Ascorbyl glucoside, Hydrolyzed rice bran extract
May help
What the product description says
“A superbly moisturizing cream which penetrates deep into the skin’s layers to provide hydration and whitening right where they are most needed.”
Source: Yesstyle

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: ascorbyl glucoside.

Ascorbyl glucosideKey activeEffect: MediumA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Has a potential to boost collagen production, nutralise free radicals and reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~22–34%
Hydrolyzed rice bran extractEffect: LowA plant extract that might contain an active compound orthosilicic acid that could be helpful to regulate the level of pigment in skin, but solid research is lacking~0.35–0.85%
Moisturizing
Glycerin, Cyclopentasiloxane + 7 more
Works
What the product description says
“A superbly moisturizing cream which penetrates deep into the skin’s layers to provide hydration and whitening right where they are most needed.”
Source: Yesstyle

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: glycerin, sodium lactate.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: methicone, peg-10 dimethicone.

GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~4.7–7%
CyclopentasiloxaneKey active· EmollientEffect: MediumA silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin~3.7–5.6%
SqualaneKey active· Emollient, OcclusiveEffect: HighAn oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.~1.3–1.9%
Sodium lactateKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product~1.2–1.8%
CholesterolKey active· EmollientEffect: HighAn emollient that is naturally found in skin~0.35–0.8%
Peg-10 dimethiconeKey active· Emollient, OcclusiveEffect: HighA silicone that works to soften the upper layer of the skin and reduce its water loss~0.3–0.7%
MethiconeKey active· Emollient, OcclusiveEffect: HighA type of silicone that helps soften the upper layer of the skin and reduces the water loss from the skin surface~0.2–0.7%
Cetyl dimethiconeKey active· EmollientEffect: HighA type of silicone. Helps soften the upper layer of the skin and creates a nice, light product texture~0.2–0.7%
Butylene glycol· HumectantEffect: LowUsed to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin~2.6–3.9%
Anti-blemish
No ingredient credited for this claim
Not delivered
What the product description says
“It blocks the further production of melanin and heals existing blemishes and freckles for a clear and radiant complexion that is soft and supple to the touch.”
Source: Yesstyle

Effective ingredients missing or their concentration is too low.

Anti-oxidation
Side benefit · Ascorbyl glucoside, Tocopheryl acetate
May help

This product contains antioxidants (ascorbyl glucoside) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

Ascorbyl glucosideKey activeEffect: MediumA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Has a potential to boost collagen production, nutralise free radicals and reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~22–34%
Tocopheryl acetateEffect: Low, below effective doseA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.~0.35–0.85%
Anti-aging
Side benefit · Ascorbyl glucoside
May help

This product contains ascorbyl glucoside. This ingredient might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.

Ascorbyl glucosideKey activeEffect: MediumA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Has a potential to boost collagen production, nutralise free radicals and reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products~22–34%

Can it cause trouble?

Irritancy
2 strong irritants: Alcohol, Parfum — patch-test recommended
High risk
We flagged 7 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
AlcoholCan be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial propertiesHigh~1.4–2.1%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.05–0.2%est.
Ascorbyl glucosideA vitamin C derivative that is more stable but less potent than pure form of vitamin C. Has a potential to boost collagen production, nutralise free radicals and reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in productsMedium~22–34%est.
Sodium lactateHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the productMedium~1.2–1.8%est.
Daucus carota sativa extract—Medium~0.45–1%est.
Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~0.35–0.85%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.35–0.75%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Ascorbyl glucoside~22–34%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-agingAnti-oxidationEvens skin tone

A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Has a potential to boost collagen production, nutralise free radicals and reduce hyperpigmentation, but the required concentration is likely to be much higher than for the pure form of vitamin C, limiting the ingredient's effectiveness in products

More about Ascorbyl glucoside
Water~11–17%
Formula
Irritation risk
Low

Plain old water

More about Water
Glycerin~4.7–7%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Cyclopentasiloxane~3.7–5.6%
Key active
Irritation risk
Low
Works for
MattifyingMoisturizing

A silicone that helps improve the product texture and spreadability. Can absorb oil creating a short-term mattifying effect on the skin

More about Cyclopentasiloxane
Butylene glycol~2.6–3.9%
Formula
Irritation risk
Low
Works for
Moisturizing

Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin

More about Butylene glycol
Methicone~2.1–3.1%
Key active
Irritation risk
Low
Works for
Moisturizing

A type of silicone that helps soften the upper layer of the skin and reduces the water loss from the skin surface

More about Methicone
Alcohol~1.4–2.1%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol
Sodium lactate~1.2–1.8%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product

More about Sodium lactate
Squalane~1.3–1.9%
Key active
Irritation risk
Low
Works for
Moisturizing

An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.

More about Squalane
Gentiana lutea extract~1–1.5%
Formula
Angelica acutiloba extract~0.6–1.35%
Formula
Daucus carota sativa extract~0.45–1%
Irritant · medium
Melosuria extract
Not recognized
Coix lacryma-jobi ma-yuen seed extract~0.4–0.95%
Formula
Hydrolyzed rice bran extract~0.35–0.85%
Formula
Irritation risk
Low
Works for
Evens skin tone

A plant extract that might contain an active compound orthosilicic acid that could be helpful to regulate the level of pigment in skin, but solid research is lacking

More about Hydrolyzed rice bran extract
Tocopheryl acetate~0.35–0.85%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate
Cordyceps sinensis extract~0.35–0.85%
Formula
Citric acid~0.35–0.75%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Cholesterol~0.35–0.8%
Key active
Irritation risk
Low
Works for
MoisturizingCleansing

An emollient that is naturally found in skin

More about Cholesterol
Cholesteryl hydroxystearate~0.3–0.7%
Formula
Peg-10 dimethicone~0.3–0.7%
Key active
Irritation risk
Low
Works for
Moisturizing

A silicone that works to soften the upper layer of the skin and reduce its water loss

More about Peg-10 dimethicone
Methicone~0.2–0.7%
Key active
Irritation risk
Low
Works for
Moisturizing

A type of silicone that helps soften the upper layer of the skin and reduces the water loss from the skin surface

More about Methicone
Cetyl dimethicone~0.2–0.7%
Key active
Irritation risk
Low
Works for
Moisturizing

A type of silicone. Helps soften the upper layer of the skin and creates a nice, light product texture

More about Cetyl dimethicone
Poly (oxyethylene, oxypropylene) methylpolysiloxane…
Not recognized
Disodium phosphate~0.15–0.5%
Formula
Irritation risk
Low

Helps adjust the product pH and stabilize the formulation

More about Disodium phosphate
Sodium hydroxide~0.1–0.4%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Hydrogenated lecithin~0.1–0.4%
Formula
Irritation risk
Low
Works for
Cleansing

Helps to retain moisture by creating a protective barrier on the skin. Rich in fatty acids. Improves product texture and helps with the penetration of other ingredients.

More about Hydrogenated lecithin
Alcohol~0.1–0.3%
Irritant · high
Irritation risk
High
Works for
Antibacterial

Can be drying and contribute to skin irritation. Used in formulars to dissolve other ingredients, create a thinner product consistency or for its antibacterial properties

More about Alcohol
Silica~0.15–0.5%
Formula
Irritation risk
Low

Used to absorb oil and can temporarily mattify skin

More about Silica
Paraoxybenzoic acid ester
Not recognized
Parfum~0.05–0.2%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Ingredient list view

Ascorbyl glucoside, Water, Glycerin, Cyclopentasiloxane, Butylene glycol, Methicone, Alcohol, Sodium lactate, Squalane, Gentiana lutea extract, Angelica acutiloba extract, Daucus carota sativa extract, Unknown, Coix lacryma-jobi ma-yuen seed extract, Hydrolyzed rice bran extract, Tocopheryl acetate, Cordyceps sinensis extract, Citric acid, Cholesterol, Cholesteryl hydroxystearate, Peg-10 dimethicone, Methicone, Cetyl dimethicone, Unknown, Disodium phosphate, Sodium hydroxide, Hydrogenated lecithin, Alcohol, Silica, Unknown, Parfum

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Amazon USPrice as of 11/10 03:17 GMT
$62.00
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Yesstyle
$65.80 Out of stock
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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
KoseSekkisei CreamYOUR PRODUCTSEKKISEICreamEstée LauderRevitalizing Supreme+ Global Anti-Aging Cell Power CrèmePaula's choiceClinical Ceramide-Enriched Firming Moisturiser
Match—46%41%41%
Price$62.00$88.00+$26.00$47.40−$14.60$50.40−$11.60
Shared key ingredients—5 of 94 of 94 of 9
Key difference—CyclomethiconeAcetyl GlucosamineRetinol
Irritancy High Medium Medium Medium
Drying alcohol Contains drying alcohol Contains drying alcohol ——
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As an Amazon Associate, WIMJ earns from qualifying purchases.