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Ren Skincare Face Flash Rinse 1 Minute Facial
Ren Skincare

Ren Skincare Face Flash Rinse 1 Minute Facial

Efficacy75/100IrritancyHigh
See all ingredients

Works for

Cleansing
Sodium cocoyl glutamate
Can be harsh
What the product description says
“Face Flash Rinse 1 Minute Facial”
From product name

This product works by removing dirt and oil from the surface of the skin.

Keep in mind that cleansing can disrupt the skin barrier, and most people do not need to cleanse their skin more than once per day.

Sodium cocoyl glutamateEffect: HighHelps oil and water mix together~2.6–4%

Can it cause trouble?

Irritancy
3 strong irritants: Citrus aurantium dulcis flower oil, Boswellia carterii oil + 1 more — 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
Ascorbic acidThe most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of agingHigh~6.4–9.6%est.
Citrus aurantium dulcis flower oil—High~1.3–2%est.
Boswellia carterii oilUsed as a fragrance. Can be irritatingHigh~0.4–0.95%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.05–0.2%est.
Coconut alkanesAn emollient that helps soften the skinMedium~23–35%est.
Sodium cocoyl glutamateHelps oil and water mix togetherMedium~2.6–4%est.
Magnesium ascorbyl phosphateA derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very highMedium~0.1–0.4%est.
Comedogenic
1 ingredient rated 2 or more on the 0–5 pore-clogging scale
1 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Coconut alkanesAn emollient that helps soften the skin2/5~23–35%est.
Alternatives
The closest match we found
Calamine Secret Bar
K-SECRET Calamine Secret Bar
Closest match65% match
$9.60
View all alternatives

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Ingredients

Filter by role to see what each ingredient is doing.

Coconut alkanes~23–35%
Comedogenic 2/5Irritant · medium
Irritation risk
Medium
Comedogenicity
2/5
Works for
Moisturizing

An emollient that helps soften the skin

More about Coconut alkanes
Ascorbic acid~6.4–9.6%
Irritant · high
Irritation risk
High
Works for
Evens skin toneAnti-agingAnti-oxidation

The most well-researched antioxidant that works in skin. Helps neutralize free radicals supporting collagen production, helping to even out the skin tone and preventing early signs of aging

More about Ascorbic acid
Coco-caprylate/caprate~4.6–7%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps to soften the upper layer of the skin without creating a greasy texture

More about Coco-caprylate/caprate
Silica~3.8–5.6%
Formula
Irritation risk
Low

Used to absorb oil and can temporarily mattify skin

More about Silica
Sodium cocoyl glutamate~2.6–4%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Sodium cocoyl glutamate
Mannitol~1.8–2.8%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps to attract water to the upper layer of the skin

More about Mannitol
Citrus aurantium dulcis flower oil~1.3–2%
Irritant · high
Irritation risk
High
More about Citrus aurantium dulcis flower oil
Faex extract~1–1.5%
Formula
Irritation risk
Low
Works for
Moisturizing

Yeast extract. Helps attract water to the upper layer of the skin

More about Faex extract
Copper pca~0.6–1.35%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Copper pca
Boswellia carterii oil~0.4–0.95%
Irritant · high
Irritation risk
High

Used as a fragrance. Can be irritating

More about Boswellia carterii oil
Boswellia serrata extract~0.3–0.75%
Formula
Irritation risk
Low
More about Boswellia serrata extract
Glycogen~0.1–0.45%
Formula
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Glycogen
Magnesium ascorbyl phosphate~0.1–0.4%
Irritant · medium
Irritation risk
Medium
Works for
Anti-agingEvens skin toneAnti-oxidation

A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high

More about Magnesium ascorbyl phosphate
Limonene~0.05–0.2%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Ingredient list view

Coconut alkanes, Ascorbic acid, Coco-caprylate/caprate, Silica, Sodium cocoyl glutamate, Mannitol, Citrus aurantium dulcis flower oil, Faex extract, Copper pca, Boswellia carterii oil, Boswellia serrata extract, Glycogen, Magnesium ascorbyl phosphate, Limonene

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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
Ren SkincareFace Flash Rinse 1 Minute FacialYOUR PRODUCTK-SECRETCalamine Secret BarPaula's choiceEarth Sourced Perfectly Natural Cleansing Gel Full sizeCoco HouseУходовая кокосовая пенка - мусс для умывания, увлажнения лица и очищение нарощенных ресниц
Match—65%26%26%
Price—$9.60$37.43—
Shared key ingredients—1 of 61 of 61 of 6
Key difference—NiacinamideCaprylic/Capric TriglycerideHydroxyethyl Urea
Irritancy High Low Low Medium
Drying alcohol————
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More alternatives: Eau de Jonzac REactive High Tolerance Cleansing Lotion OrganicAravia Laboratories Гель для умывания с гиалуроновой кислотой Hyaluronic Cleansing Gel

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 5 studies and safety reviews.

  1. 1
    Safety Assessment of Alkyl Esters as Used in Cosmeticscir-safety.org
  2. 2
    Safety Assessment of Amino Acid Alkyl Amides as Used in Cosmeticsncbi.nlm.nih.gov
  3. 3
    Irritant and sensitizing potential of eight surfactants commonly used in skin cleansers: an evaluation of 105 patientsjournals.lww.com
  4. 4
    Stability, transdermal penetration, and cutaneous effects of ascorbic acid and its derivativesncbi.nlm.nih.gov
  5. 5
    Topical L-ascorbic acid: percutaneous absorption studiesncbi.nlm.nih.gov
Ren Skincare Face Flash Rinse 1 Minute Facial
Ren SkincareFace Flash Rinse 1 Minute Facial
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Find on Amazon

As an Amazon Associate, WIMJ earns from qualifying purchases.