PRODUCT REVIEW
Good Molecules Mandelic Acid Serum
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Price as of 10/18/2025 2:10 GMT.
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Product summary
What can the product work for?
Works for
Does not work for
Anti-aging
What does the product description say?
Our combination of three very gentle peeling agents (10% Mandelic Acid, 1% Phytic Acid, and 1% Gluconolactone) helps promote a clearer, smoother, and more even complexion while also improving the appearance of fine lines.
gluconolactone
1.3% -
2%
Irritation risk:
Concentration: Effectiveness: HIGH
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
Evens skin tone
What does the product description say?
Our combination of three very gentle peeling agents (10% Mandelic Acid, 1% Phytic Acid, and 1% Gluconolactone) helps promote a clearer, smoother, and more even complexion while also improving the appearance of fine lines.
gluconolactone
1.3% -
2%
Irritation risk:
Concentration: Effectiveness: HIGH
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
mandelic acid
5.3% -
7.9%
Irritation risk:
Concentration: Effectiveness: HIGH
Helps shed the upper layer of dead cells from the surface of the skin revealing smoother, brighter skin. It can help to reduce hyperpigmentation. It has anti-bacterial properties, and might help to reduce blemishes, as well as fine lines and wrinkles. It is considered to be gentler than glycolic acid
Exfoliation
What does the product description say?
Our combination of three very gentle peeling agents (10% Mandelic Acid, 1% Phytic Acid, and 1% Gluconolactone) helps promote a clearer, smoother, and more even complexion while also improving the appearance of fine lines.
gluconolactone
1.3% -
2%
Irritation risk:
Concentration: Effectiveness: HIGH
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
mandelic acid
5.3% -
7.9%
Irritation risk:
Concentration: Effectiveness: HIGH
Helps shed the upper layer of dead cells from the surface of the skin revealing smoother, brighter skin. It can help to reduce hyperpigmentation. It has anti-bacterial properties, and might help to reduce blemishes, as well as fine lines and wrinkles. It is considered to be gentler than glycolic acid
allantoin
0.4% -
0.9%
Irritation risk:
Concentration: Insufficient!
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
Moisturizing
What does the product description say?
The Mandelic Acid Serum is ideal for use on sensitive skin and yields a hydrated skin feel with two sizes of Hyaluronic Acid
gluconolactone
1.3% -
2%
Irritation risk:
Concentration: Effectiveness: HIGH
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
glycerin
0.05% -
0.2%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
sodium hyaluronate
1% -
1.6%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
Show more
Anti-oxidation
gluconolactone
1.3% -
2%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
Anti-blemish
gluconolactone
1.3% -
2%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
mandelic acid
5.3% -
7.9%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
Helps shed the upper layer of dead cells from the surface of the skin revealing smoother, brighter skin. It can help to reduce hyperpigmentation. It has anti-bacterial properties, and might help to reduce blemishes, as well as fine lines and wrinkles. It is considered to be gentler than glycolic acid
allantoin
0.4% -
0.9%
Irritation risk:
Concentration: Insufficient!
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Exfoliation | |
| Evens skin tone | |
| Moisturizing | |
| Anti-blemish |
Total Promises Fulfilled score:
85/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
mandelic acid
5.3% -
7.9%
Irritation risk:
Works for:
Evens skin tone,
Exfoliation,
Anti-blemish,
Antibacterial
Helps shed the upper layer of dead cells from the surface of the skin revealing smoother, brighter skin. It can help to reduce hyperpigmentation. It has anti-bacterial properties, and might help to reduce blemishes, as well as fine lines and wrinkles. It is considered to be gentler than glycolic acid
Show more
Comodogenic ingredients
No comodogenic ingredients detected
User reviews (0)
Similar products & dupes
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| Irritancy | IRRITANCY
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LOW
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LOW
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LOW
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LOW
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LOW
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LOW
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Ingredients & concentrations
All ingredients
Key Actives
gluconolactone
1.3% -
2%
Irritation risk:
Works for:
Exfoliation,
Evens skin tone,
Anti-aging,
Moisturizing,
Anti-blemish,
Anti-oxidation
A polyhydroxy acid (PHA) that helps shed the dead cells from the skin surface revealing smoother skin. Is believed to be genter than AHAs. It helps attract water to the upper layer of the skin and can stimulate production of skin's own hyaluronic acid resulting in improved hydration levels. It has been shown to be helpful against acne and clogged pores if used consistently (e.g over a period of 12 weeks) in high enough concentration. It can help reduce fine lines and wrinkles and improve skin tone with long-term application. Can help neutralize free radicals
allantoin
0.4% -
0.9%
Irritation risk:
Works for:
Moisturizing,
Anti-inflammatory,
Anti-blemish,
Reduces redness,
Reduces irritation,
Exfoliation
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
Show more
Potential irritants
mandelic acid
5.3% -
7.9%
Irritation risk:
Works for:
Evens skin tone,
Exfoliation,
Anti-blemish,
Antibacterial
Helps shed the upper layer of dead cells from the surface of the skin revealing smoother, brighter skin. It can help to reduce hyperpigmentation. It has anti-bacterial properties, and might help to reduce blemishes, as well as fine lines and wrinkles. It is considered to be gentler than glycolic acid
Show more
Comodogenic ingredients
We couldn't find any comodogenic ingredients in this product
All ingredients
mandelic acid
5.3% -
7.9%
Irritation risk:
Works for:
Evens skin tone,
Exfoliation,
Anti-blemish,
Antibacterial
Helps shed the upper layer of dead cells from the surface of the skin revealing smoother, brighter skin. It can help to reduce hyperpigmentation. It has anti-bacterial properties, and might help to reduce blemishes, as well as fine lines and wrinkles. It is considered to be gentler than glycolic acid
dimethyl isosorbide
3.7% -
5.6%
Irritation risk:
Used to dissolve other ingredients in a product and can enhance their ability to penetrate the skin
Show more
Ingredient list view
Water, Mandelic acid, Dimethyl isosorbide, Propanediol, Potassium hydroxide, Phytic acid, Gluconolactone, Sodium hyaluronate, Polyacrylate crosspolymer-6, Allantoin, Caprylyl glyceryl ether, Sclerotium gum, Sodium polyacryloyldimethyl taurate, Succinoglycan, Caprylhydroxamic acid, Xanthan gum, Glycerin
Sources
- Summary of mandelic acid for the improvement of skin conditions
- Comparative Evaluation of Efficacy and Tolerability of Glycolic Acid, Salicylic Mandelic Acid, and Phytic Acid Combination Peels in Melasma
- Activity enhancement of ferulic acid with dimethyl isosorbride in cosmetic compositions
- Cosmetic and dermatologic use of alpha hydroxy acids
- Comparative Evaluation of Efficacy and Tolerability of Glycolic Acid, Salicylic Mandelic Acid, and Phytic Acid Combination Peels in Melasma
- A comparative study of gluconolactone versus benzoyl peroxide in the treatment of acne
- The Polyhydroxy Acid Gluconolactone Protects Against Ultraviolet Radiation in an In Vitro Model of Cutaneous Photoaging
- Applications of hydroxy acids: classification, mechanisms, and photoactivity
- The efficacy of glycolic acid, salicylic acid, gluconolactone, and licochalcone A combined with 0.1% adapalene vs adapalene monotherapy in mild-to-moderate acne vulgaris: a double-blinded within-person comparative study
- A polyhydroxy acid skin care regimen provides antiaging effects comparable to an alpha-hydroxyacid regimen
- The use of polyhydroxy acids (PHAs) in photoaged skin
- Blackwell Publishing, Ltd. Alpha-hydroxyacids and carboxylic acids
- An evaluation of a polyhydroxy acid skin care regimen in combination with azelaic acid 15% gel in rosacea patients
- Aging Skin: Causes, Treatments, and Prevention
- Clinical and cosmeceutical uses of hydroxyacids
- Polyhydroxy Acids (PHAs) Provide Conditioning Effects to Skin Without Increasing Sensitivity to UV Light
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care
- Profile of wound healing process induced by allantoin