Ren Skincare AHA Smart Renewal Body Serum

Ren Skincare AHA Smart Renewal Body Serum

Efficacy91/100IrritancyHigh
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Works for

3 of 3 advertised claims delivered

Exfoliation
1 ingredient credited for this claim
Strong support
What the product description says
“A moisturising AHA body serum that takes body care to the next level by combining face-favourite skincare ingredients to gently resurface and re-energise the skin’s natural radiance.”
Source: Ren Skincare

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.

Lactic acidKey activeEffect: HighAn 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)~4.2–5.2%
Evens skin tone
2 ingredients credited for this claim
Strong support
What the product description says
“Formulated with Lactic Acid (AHA) that gently exfoliates away dead skin cells, aiding skin’s natural renewal process to help even out pigmentation and skin tone, and help smooth rough, bumpy or ‘strawberry’ skin.”
Source: Ren Skincare

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: lactic acid

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.

Lactic acidKey activeEffect: HighAn 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)~4.2–5.2%
Magnesium ascorbyl phosphateEffect: Low, below effective doseA 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~0.2–0.35%
Moisturizing
11 ingredients credited for this claim
Good support
What the product description says
“A moisturising AHA body serum that takes body care to the next level by combining face-favourite skincare ingredients to gently resurface and re-energise the skin’s natural radiance.”
Source: Ren Skincare

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: anhydroxylitol, glycogen.

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: butyrospermum parkii butter.

GlycogenKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin~0.2–0.4%
Lactococcus ferment lysateKey activeEffect: HighConsists of remains of dead bacteria cells. Is likely helpful in attracting water to the upper layer of the skin. Might be helpful in reducing inflammation and neutralizing free radicals in skin~2.3–2.9%
Faex extractKey activeEffect: HighYeast extract. Helps attract water to the upper layer of the skin~0.25–0.5%
Lactic acidKey active· HumectantEffect: HighAn 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)~4.2–5.2%
MannitolKey active· HumectantEffect: HighHelps to attract water to the upper layer of the skin~0.45–0.7%
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~3.1–3.8%
XylitylglucosideKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and repair the skin barrier function~1.4–1.7%
AnhydroxylitolKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin and repair the skin barrir function~0.8–1.2%
Butyrospermum parkii butterKey active· Emollient, OcclusiveEffect: HighA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~6.5–7.9%
GlucoseKey active· HumectantEffect: MediumHelps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function~0.25–0.45%
LysolecithinEffect: LowLecithin derivative. It helps oil and water mix together and can enhance penetration of other ingredients. It helps soften the upper layer of the skin~1.9–2.4%
Anti-aging
Not advertised by the brand · 4 ingredients credited for this claim
Moderate support

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.

Lactic acidKey activeEffect: MediumAn 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)~4.2–5.2%
Butyrospermum parkii butterEffect: LowA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals~6.5–7.9%
Lactococcus ferment lysateEffect: LowConsists of remains of dead bacteria cells. Is likely helpful in attracting water to the upper layer of the skin. Might be helpful in reducing inflammation and neutralizing free radicals in skin~2.3–2.9%
Magnesium ascorbyl phosphateEffect: Low, below effective doseA 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~0.2–0.35%

Can it cause trouble?

Irritancy
8 strong irritants: Parfum, Citrus aurantium dulcis flower oil + 6 more — patch-test recommended
High risk
We flagged 15 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
PullulanCreates a thin drying film on the skin resulting in a short-term tightening effectHigh~0.7–1.05%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.5–0.75%est.
Citrus aurantium dulcis flower oil—High~0.35–0.6%est.
Citrus grandis peel oilA plant oil with high content of volatile compounds that, especially when exposed to air, can cause allergic reactions and irritate the skinHigh~0.3–0.55%est.
Citrus nobilis peel oilA plant oil with high content of volatile compounds that, especially when exposed to air, can cause allergic reactions and irritate the skinHigh~0.3–0.55%est.
Citrus tangerina peel oilEssential oil that can be irritating. Can lead to photosensitivityHigh~0.3–0.55%est.
CitralA fragrance with a lemon scent. A likely irritantHigh~0.1–0.2%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.1–0.15%est.
LinaloolA fragrance. Can be irritatingHigh~0.05–0.15%est.
Lactic acidAn 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)Medium~4.2–5.2%est.
Sodium lactateHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the productMedium~3.1–3.8%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~0.25–0.5%est.
Potassium sorbateA preservativeMedium~0.25–0.5%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~0.2–0.35%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.15–0.25%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
Butyrospermum parkii butterA great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals3/5~6.5–7.9%est.
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Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Butyrospermum parkii butter~6.5–7.9%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
MoisturizingAnti-agingAnti-oxidation

A great moisturising ingredient that softens the skin and reduces water loss from its upper layer. It also can be helpful in protecting skin from free radicals

More about Butyrospermum parkii butter
Lactic acid~4.2–5.2%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Evens skin toneMoisturizingExfoliationAnti-aging

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)

More about Lactic acid
Sodium lactate~3.1–3.8%
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
Lactococcus ferment lysate~2.3–2.9%
Key active
Irritation risk
Low
Works for
MoisturizingAnti-oxidationAnti-agingAnti-inflammatory

Consists of remains of dead bacteria cells. Is likely helpful in attracting water to the upper layer of the skin. Might be helpful in reducing inflammation and neutralizing free radicals in skin

More about Lactococcus ferment lysate
Lysolecithin~1.9–2.4%
Formula
Irritation risk
Low
Works for
CleansingMoisturizing

Lecithin derivative. It helps oil and water mix together and can enhance penetration of other ingredients. It helps soften the upper layer of the skin

More about Lysolecithin
Sclerotium gum~1.6–2%
Formula
Irritation risk
Low

Used to create gel-like formulas and stabilize emulsions

More about Sclerotium gum
Xylitylglucoside~1.4–1.7%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin and repair the skin barrier function

More about Xylitylglucoside
Xanthan gum~1.1–1.4%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Anhydroxylitol~0.8–1.2%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin and repair the skin barrir function

More about Anhydroxylitol
Pullulan~0.7–1.05%
Irritant · high
Irritation risk
High
Works for
Mattifying

Creates a thin drying film on the skin resulting in a short-term tightening effect

More about Pullulan
Parfum~0.5–0.75%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Mannitol~0.45–0.7%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps to attract water to the upper layer of the skin

More about Mannitol
Xylitol~0.4–0.6%
Formula
Irritation risk
Low

Helps attract water to the upper layer of the skin and repair the skin barrier function

More about Xylitol
Sodium benzoate~0.25–0.5%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Citrus aurantium dulcis flower oil~0.35–0.6%
Irritant · high
Citrus grandis peel oil~0.3–0.55%
Irritant · high
Irritation risk
High

A plant oil with high content of volatile compounds that, especially when exposed to air, can cause allergic reactions and irritate the skin

More about Citrus grandis peel oil
Citrus nobilis peel oil~0.3–0.55%
Irritant · high
Irritation risk
High

A plant oil with high content of volatile compounds that, especially when exposed to air, can cause allergic reactions and irritate the skin

More about Citrus nobilis peel oil
Citrus tangerina peel oil~0.3–0.55%
Irritant · high
Irritation risk
High

Essential oil that can be irritating. Can lead to photosensitivity

More about Citrus tangerina peel oil
Tocopheryl acetate~0.25–0.5%
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
Potassium sorbate~0.25–0.5%
Irritant · medium
Irritation risk
Medium

A preservative

More about Potassium sorbate
Faex extract~0.25–0.5%
Key active
Irritation risk
Low
Works for
Moisturizing

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

More about Faex extract
Glucose~0.25–0.45%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function

More about Glucose
Silica~0.35–0.65%
Formula
Irritation risk
Low

Used to absorb oil and can temporarily mattify skin

More about Silica
Sodium chloride~0.25–0.45%
Formula
Irritation risk
Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride
Glycogen~0.2–0.4%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Glycogen
Magnesium ascorbyl phosphate~0.2–0.35%
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
Citric acid~0.15–0.25%
Irritant · medium
Irritation risk
Medium

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

More about Citric acid
Citral~0.1–0.2%
Irritant · high
Irritation risk
High

A fragrance with a lemon scent. A likely irritant

More about Citral
Limonene~0.1–0.15%
Irritant · high
Irritation risk
High

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

More about Limonene
Linalool~0.05–0.15%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Ingredient list view

Water, Butyrospermum parkii butter, Lactic acid, Sodium lactate, Lactococcus ferment lysate, Lysolecithin, Sclerotium gum, Xylitylglucoside, Xanthan gum, Anhydroxylitol, Pullulan, Parfum, Mannitol, Xylitol, Sodium benzoate, Citrus aurantium dulcis flower oil, Citrus grandis peel oil, Citrus nobilis peel oil, Citrus tangerina peel oil, Tocopheryl acetate, Potassium sorbate, Faex extract, Glucose, Silica, Sodium chloride, Glycogen, Magnesium ascorbyl phosphate, Citric acid, Citral, Limonene, Linalool

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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 SkincareAHA Smart Renewal Body SerumYOUR PRODUCTADVANCED CLINICALSBody Bump Eraser
Match—51%
Price$21.00$10.00−$11.00
Shared key ingredients—3 of 10
Key difference—Glycolic Acid
Irritancy High Medium
Drying alcohol——
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Product summary

"Ren Skincare - AHA Smart Renewal Body Serum" is effective for: Evens skin tone and Exfoliation

This product could be helpful for: Moisturizing and Anti-aging, but its actives are not the most effective or are not well-studied.

Ingredient callouts

  • Exfoliating acids (lactic acid 4.20% - 5.20%). In this concentration, they will have a noticeable exfoliating effect. They can also have an anti-aging effect and stimulate collagen production in a long-run. Lactic Acid can also help to attract water to the upper layer (works as a humectant).
  • Humectants (mannitol 0.45% - 0.70%, xylitylglucoside 1.40% - 1.70%, sodium lactate 3.10% - 3.80%, lactic acid 4.20% - 5.20%, glycogen 0.20% - 0.40% and anhydroxylitol 0.80% - 1.20%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.

Price

The product retails from 23.51£ up to 385.32£ in the United Kingdom, from 37.00$ up to 62.00$ in the United States, for 69.87A$ in Australia, for 38.00£ in the United Kingdom and for 385.00HK$ in Hong Kong.

For a detailed price comparison: click here.

Ren Skincare AHA Smart Renewal Body Serum
Ren SkincareAHA Smart Renewal Body Serum

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.