PRODUCT REVIEW
Collistar Anti-Dark Spot Concentrate Glycolic Acid and Niacinamide
Buy from Amazon US $39.90
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Price as of 10/6/2024 2:50 GMT.
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What can the product work for?
Anti-aging
What does the product description say?
niacinamide
2.7% -
4%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
lactobionic acid
0.2% -
0.75%
Irritation risk:
Concentration: Effectiveness: HIGH
A polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity
glycolic acid
1.6% -
2.4%
Irritation risk:
Concentration: Effectiveness: HIGH
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
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Evens skin tone
What does the product description say?
niacinamide
2.7% -
4%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
lactobionic acid
0.2% -
0.75%
Irritation risk:
Concentration: Effectiveness: HIGH
A polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity
mandelic acid
0.6% -
1.35%
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
Show more
Anti-blemish
niacinamide
2.7% -
4%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
glycolic acid
1.6% -
2.4%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
gluconolactone
1.2% -
1.8%
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
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Exfoliation
gluconolactone
1.2% -
1.8%
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
glycolic acid
1.6% -
2.4%
Irritation risk:
Concentration: Effectiveness: HIGH
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
lactobionic acid
0.2% -
0.75%
Irritation risk:
Concentration: Effectiveness: HIGH
A polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity
Show more
Moisturizing
glycerin
3.9% -
5.9%
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
lactobionic acid
0.2% -
0.75%
Irritation risk:
Concentration: Effectiveness: HIGH
A polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity
niacinamide
2.7% -
4%
Irritation risk:
Concentration: Effectiveness: HIGH
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
Show more
Anti-oxidation
lactobionic acid
0.2% -
0.75%
Irritation risk:
Concentration: Effectiveness: HIGH
A polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity
gluconolactone
1.2% -
1.8%
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
3-o-ethyl ascorbic acid
0.05% -
0.25%
Irritation risk:
Concentration: Insufficient!
A vitamin C derivative that is more stable but less potent than pure form of vitamin C. Can help neutralize free radicals and help 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
Honesty check
How honest is this product?
Promise | Can it deliver? |
---|---|
Anti-aging | |
Evens skin tone |
Total Promises Fulfilled score:
100/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
glycolic acid
1.6% -
2.4%
Irritation risk:
Works for:
Anti-aging,
Exfoliation,
Evens skin tone,
Anti-blemish
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
mandelic acid
0.6% -
1.35%
Irritation risk:
Works for:
Exfoliation,
Evens skin tone,
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)
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Ingredients & concentrations
All ingredients
Key Actives
niacinamide
2.7% -
4%
Irritation risk:
Works for:
Moisturizing,
Evens skin tone,
Anti-blemish,
Anti-aging,
Reduces irritation,
Reduces redness,
Anti-inflammatory,
Antibacterial
Is proven to be effective in reducing blemishes, evening out skin tone and helping to improve lines and wrinkles. It helps the skin to repair sun damage, calm down inflammation and keep maintain good levels of moisture.
The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production
lactobionic acid
0.2% -
0.75%
Irritation risk:
Works for:
Exfoliation,
Moisturizing,
Evens skin tone,
Anti-oxidation,
Anti-aging,
Anti-inflammatory,
Anti-blemish
A polyhydroxy acid (PHA) that helps shed dead cells from the surface of the skin revealing a smoother, more even skin. PHAs tend to be gentler on the skin compared to AHAs (for example, glycolic acid). It also has hydrating properties and helps attract water to the upper layer of the skin. It can help calm down inflammation in skin and support restoration of the barrier function. It has an anti-oxidant effect as well. It can help reduce fine line, wrinkles and improve skin elasticity
Show more
Potential irritants
glycolic acid
1.6% -
2.4%
Irritation risk:
Works for:
Anti-aging,
Exfoliation,
Evens skin tone,
Anti-blemish
An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid
mandelic acid
0.6% -
1.35%
Irritation risk:
Works for:
Exfoliation,
Evens skin tone,
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
glycerin
3.9% -
5.9%
Irritation risk:
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
pentylene glycol
3.7% -
5.5%
Irritation risk:
Works for:
Moisturizing
Used to preserve products, dissolve other ingredients and create a nice product texture
Show more
Ingredient list view
Water, Glycerin, Pentylene glycol, Niacinamide, Nylon-12, Glycolic acid, C15-19 alkane, Gluconolactone, Bis-peg-18 methyl ether dimethyl silane, Mandelic acid, Polyacrylate crosspolymer-6, Dimethicone, Phenoxyethanol, Sodium hydroxide, Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, Lactobionic acid, 1,2-hexanediol, Carbomer, Isohexadecane, Sodium benzoate, Acetyl glucosamine, Xanthan gum, Sodium hyaluronate, 3-o-ethyl ascorbic acid, Polysorbate 60, Dimethicone/vinyl dimethicone crosspolymer, Disodium edta, Amodimethicone
Sources
- Glycerol and the skin: holistic approach to its origin and functions
- Niacinamide - mechanisms of action and its topical use in dermatology
- Gehring, W. (2004). Nicotinic acid/niacinamide and the skin. Journal of Cosmetic Dermatology, 3(2), 88–93. doi:10.1111/j.1473-2130.2004.00115.x
- Photoprotective and antiinflammatory effects of topical glycolic acid
- Glycolic acid peel therapy – a current review
- Dual Effects of Alpha-Hydroxy Acids on the Skin
- 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
- 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
- Dimethicone as a protective ingredient in topical medications
- Final Report on the Safety Assessment of Dimethicone Copolyol
- Lactobionic acid
- Effects of lactobionic acid peel, aluminum oxide crystal microdermabrasion, and both procedures on skin hydration, elasticity, and transepidermal water loss
- Comparative evaluation of skin moisture after topical application of 10% and 30% lactobionic acid
- The influence of alkane chain length on the skin irritation potential of 1,2-alkanediols
- The effect of N-acetyl-glucosamine on stratum corneum desquamation and water content in human skin
- Glucosamine: an ingredient with skin and other benefits
- Genomic expression changes induced by topical N-acetyl glucosamine in skin equivalent cultures in vitro
- Incorporation of D-(^H)glucosamine into normal and psoriatic epidermal glycoconjugates
- Reduction in the appearance of facial hyperpigmentation by topical N-acetyl glucosamine
- Hyaluronic acid: A key molecule in skin aging
- Hyaluronan (Hyaluronic Acid): a natural moisturizer for skin care