Works for:
based on ingredients and %- Evens skin tone
- Exfoliation
- Anti-aging
- Moisturizing
Doesn't work for:
based on ingredients and %- Anti-blemish
Can it cause trouble?
- Irritation risk: high
- Comedogenic risk ingredients: 2
Key actives
Product Summary
"SUNDAY RILEY - FLASH FIX" is effective for: Evens skin tone and Exfoliation
This product could be helpful for: Anti-aging and Moisturizing, but its actives are not the most effective or are not well-studied.
Ingredient callouts
- Exfoliating acids in a high total concentration (lactic acid 1.70% - 2.00% and lactic acid 25.00% - 30.00%). This is a strong peel. It removes the top layer of the dead skin cells, revealing a "fresher" skin. It can also have an anti-aging effect and stimulate collagen production in a long-run. But we recommend to use this product with caution to avoid over-exfoliation (no more than 1-2x a week). Over-exfoliation can seriously damage your skin barrier and lead to sensitivity and even trigger pigmentation issues.
- Humectants (cyclomethicone 0.95% - 1.15%, lactic acid 1.70% - 2.00%, yeast extract 1.90% - 2.40% and lactic acid 25.00% - 30.00%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
About the brand
According to Cruelty-Free Kitty "SUNDAY RILEY" is cruelty free and so is its parent company.
Price
The product retails for 65.98CA$ in Canada, for 92.19A$ in Australia, for 25.00$ in the United States and for 42.98£ in the United Kingdom.
For a detailed price comparison: click here.
Evens skin tone
What does the product description say?
Two cult favorites in one easy kit, Sunday Riley's FLASH FIX exfoliates and brightens skin for a more radiant-looking complexion.
Source: Dermstore
This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: lactic acid
The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually can help even out the skin tone: glycyrrhiza glabra root extract.
Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
A plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals
Exfoliation
What does the product description say?
Two cult favorites in one easy kit, Sunday Riley's FLASH FIX exfoliates and brightens skin for a more radiant-looking complexion.
Source: Dermstore
This product can help exfoliate the skin. In other words, it helps break down the bonds between dead cells on the surface of the skin and speed up the skin turnover. Skin often appears softer and brighter after exfoliation, but overdoing it can result in disrupted skin barrier. The following ingredient is doing the exfoliating job in this product: lactic acid.
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
Anti-aging
What does the product description say?
balances and purifies the complexion Key Ingredients Purified Grade Lactic Acid exfoliates dull, pore-clogging dead skin cells to instantly clarify and reveal smoother, clearer, younger-looking skin while diminishing the look of dark spots French Green Clay helps to remove impurities and tighten the appearance of pores Licorice (Glycyrrhiza Glabra) brightens the appearance of dark spots Moroccan Rhassoul Clay helps to deep clean and purify the skin Vitamin C provides antioxidant properties, while helping to brighten the appearance of the skin Key Benefits Exfoliates skin Purifies and deep cleans the skin Instantly restores lost radiance
Source: Dermstore
This product contains lactic acid. 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.
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
Moisturizing
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:
cyclomethicone, lactic acid.
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: caprylic/capric triglyceride, dimethicone.
A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin
A moisturizing ingredient that works as a humectant to attract water to the upper layer of the skin.
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.
An exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)
A type of silicone that leaves a nice silky finish on the skin and can help soften its upper layer
A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish
A non-drying alcohol. Works as an emollient. Helps water and oil mix together and creates a nice product texture
Emollients that are naturaly present in skin. In addition, they help water and oil mix together in the product
Helps preserve products and creates a nice product texture
Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin
An emollient that softens the skin and forms a protective layer on its surface. Helps water and oil mix together
Helps oil and water mix together and works as an emollient
An emollient that helps to soften the skin and create a pleasant product texture and stabilize the formulation
Used to preserve products, dissolve other ingredients and create a nice product texture
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
Is used to dissolve other ingredients and create nice product texture
Anti-blemish
What does the product description say?
balances and purifies the complexion Key Ingredients Purified Grade Lactic Acid exfoliates dull, pore-clogging dead skin cells to instantly clarify and reveal smoother, clearer, younger-looking skin while diminishing the look of dark spots French Green Clay helps to remove impurities and tighten the appearance of pores Licorice (Glycyrrhiza Glabra) brightens the appearance of dark spots Moroccan Rhassoul Clay helps to deep clean and purify the skin Vitamin C provides antioxidant properties, while helping to brighten the appearance of the skin Key Benefits Exfoliates skin Purifies and deep cleans the skin Instantly restores lost radiance
Source: Dermstore
Effective ingredients missing or their concentration is too low.
A type of clay that consists mainly of aluminum silicate. Helps absorb oil and creates a thicker product consistency. Can be used to add a white color
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Exfoliation | |
| Evens skin tone | |
| Anti-aging | |
| Anti-blemish |
Total Promises Fulfilled score: 68/100.
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Potential irritants
Comedogenic ingredients
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 SUNDAY RILEY FLASH FIX | Current | $25.00 | |
 ZO Skin Health Exfoliation Accelerator | 53% | $46.00 | |
 Obagi Nu-Derm Exfoderm Forte | 51% | $84.00 | |
 Biossance Unstoppable Glow | 51% | - | |
 Youngblood Mineral Cosmetics Youngblood Advanced Refining Serum with 5% Lactic Acid | 49% | $100.80 | |
 Dr Dennis Gross Skincare Alpha Beta Exfoliating Moisturizer | 49% | $41.00 |
Key Actives
Potential irritants
Comedogenic ingredients
All ingredients
Ingredient list view
Lactic acid, Opuntia tuna fruit extract, Agave tequilana leaf extract, Cypripedium pubescens extract, Opuntia vulgaris extract, Aloe barbadensis leaf extract, Saccharomyces cerevisiae extract, Lactic acid, Caprylic/capric triglyceride, Butylene glycol, Squalane, Cyclomethicone, Dimethicone, Ppg-12/smdi copolymer, Stearic acid, Cetearyl alcohol, Ceteareth-20, Glyceryl stearate, Peg-100 stearate, Arnica montana extract, Peg-75 meadowfoam oil, Glycyrrhiza glabra root extract, Unknown, Water, Disodium laureth sulfosuccinate, Octyldodecanol, Polyacrylate-33, Propanediol, Polyglyceryl-2 caprate, Sodium cocoyl isethionate, Disteardimonium hectorite, Xanthan gum, Montmorillonite, Kaolin, Olive oil polyglyceryl-6 esters, Rice oil glycereth-8 esters, Phospholipids, Sodium methyl cocoyl taurate, Sodium lauroamphoacetate, Bisabolol, Pentylene glycol, Sodium chloride, Sodium phytate, Citrus aurantium amara flower oil, Caprylyl glycol, Dehydroacetic acid, Benzoic acid, Propylene carbonate, Pvp
- Epidermal and dermal effects of topical lactic acid
- Dual Effects of Alpha-Hydroxy Acids on the Skin
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Final Report on the Safety Assessment of Sodium Cocoyl Isethionate
- Safety Assessment of Alkyl Taurate Amides and Taurate Salts as Used in Cosmetics
- α-(-)-Bisabolol Reduces Pro-Inflammatory Cytokine Production and Ameliorates Skin Inflammation
- Biological Activities and Safety of Citrus spp. Essential Oils
- 4 Final Report on the Safety Assessment of Sodium Dehydroacetate and Dehydroacetic Acid