PRODUCT REVIEW
SkinTra Guard Your Skin
Works for:
based on ingredients and %- Moisturizing
- Evens skin tone
- Anti-aging
- Anti-oxidation
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Can it cause trouble?
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Product summary
What can the product work for?
Works for
Anti-aging
galactomyces ferment filtrate
3.5% -
5.2%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A yeast ferment filtrate (also known as Pitera - a trademarked name for the filtrate reserved by the SK-II brand). It helps attract water to the upper layer of the skin, can help neutralize antioxidants and can be helpful in evening out the skin tone. It might be somewhat helpful in preventing premature skin aging but solid evidence is lacking. A small manufacturer study also shows that, when used in high concentrations, it can help reduce sebum production and help against blocked pores
lysine
0.45% -
1%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles
gluconolactone
0.15% -
0.7%
Irritation risk:
Concentration: Insufficient!
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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Evens skin tone
galactomyces ferment filtrate
3.5% -
5.2%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A yeast ferment filtrate (also known as Pitera - a trademarked name for the filtrate reserved by the SK-II brand). It helps attract water to the upper layer of the skin, can help neutralize antioxidants and can be helpful in evening out the skin tone. It might be somewhat helpful in preventing premature skin aging but solid evidence is lacking. A small manufacturer study also shows that, when used in high concentrations, it can help reduce sebum production and help against blocked pores
gluconolactone
0.15% -
0.7%
Irritation risk:
Concentration: Insufficient!
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
lactic acid
0.1% -
0.5%
Irritation risk:
Concentration: Insufficient!
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
galactomyces ferment filtrate
3.5% -
5.2%
Irritation risk:
Concentration: Effectiveness: HIGH
A yeast ferment filtrate (also known as Pitera - a trademarked name for the filtrate reserved by the SK-II brand). It helps attract water to the upper layer of the skin, can help neutralize antioxidants and can be helpful in evening out the skin tone. It might be somewhat helpful in preventing premature skin aging but solid evidence is lacking. A small manufacturer study also shows that, when used in high concentrations, it can help reduce sebum production and help against blocked pores
lysine
0.45% -
1%
Irritation risk:
Concentration: Effectiveness: HIGH
An amino-acid that helps to attract water to the upper layer of the skin. In combination with other amino-acids, might help to reduce fine lines and wrinkles
sodium pca
2.1% -
3.1%
Irritation risk:
Concentration: Effectiveness: HIGH
Naturally present in skin and helps to attract water to its upper layer
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Anti-oxidation
galactomyces ferment filtrate
3.5% -
5.2%
Irritation risk:
Concentration: Effectiveness: HIGH
A yeast ferment filtrate (also known as Pitera - a trademarked name for the filtrate reserved by the SK-II brand). It helps attract water to the upper layer of the skin, can help neutralize antioxidants and can be helpful in evening out the skin tone. It might be somewhat helpful in preventing premature skin aging but solid evidence is lacking. A small manufacturer study also shows that, when used in high concentrations, it can help reduce sebum production and help against blocked pores
gluconolactone
0.15% -
0.7%
Irritation risk:
Concentration: Insufficient!
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
Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Moisturizing | |
| Anti-aging | |
| Evens skin tone |
Total Promises Fulfilled score:
83/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 0
Potential irritants
phytol
0.55% -
1.25%
Irritation risk:
Works for:
Moisturizing
Might be helpful in attracting water to the upper layer of the skin. Is claimed by the manufacturer to have other skin benefits but any evidence is lacking. Can be irritating
benzyl alcohol
0.05% -
0.1%
Irritation risk:
A preservative. Can be used to mask unpleasant smell. Can be irritating
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Comodogenic ingredients
No comodogenic ingredients detected
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| WIMJ similarity score |
43%
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40%
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40%
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38%
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38%
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37%
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37%
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36%
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36%
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35%
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| Key ingredients | Common:
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| Irritancy | IRRITANCY
LOW
| IRRITANCY
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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LOW
| IRRITANCY
HIGH
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LOW
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LOW
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Ingredients & concentrations
All ingredients
Key Actives
galactomyces ferment filtrate
3.5% -
5.2%
Irritation risk:
Works for:
Moisturizing,
Anti-oxidation,
Mattifying,
Evens skin tone,
Anti-aging,
Anti-blemish
A yeast ferment filtrate (also known as Pitera - a trademarked name for the filtrate reserved by the SK-II brand). It helps attract water to the upper layer of the skin, can help neutralize antioxidants and can be helpful in evening out the skin tone. It might be somewhat helpful in preventing premature skin aging but solid evidence is lacking. A small manufacturer study also shows that, when used in high concentrations, it can help reduce sebum production and help against blocked pores
allantoin
0.2% -
0.75%
Irritation risk:
Works for:
Anti-inflammatory,
Moisturizing,
Anti-blemish,
Reduces irritation,
Reduces redness,
Exfoliation
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
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Potential irritants
phytol
0.55% -
1.25%
Irritation risk:
Works for:
Moisturizing
Might be helpful in attracting water to the upper layer of the skin. Is claimed by the manufacturer to have other skin benefits but any evidence is lacking. Can be irritating
benzyl alcohol
0.05% -
0.1%
Irritation risk:
A preservative. Can be used to mask unpleasant smell. Can be irritating
Show more
Comodogenic ingredients
We couldn't find any comodogenic ingredients in this product
All ingredients
galactomyces ferment filtrate
3.5% -
5.2%
Irritation risk:
Works for:
Moisturizing,
Anti-oxidation,
Mattifying,
Evens skin tone,
Anti-aging,
Anti-blemish
A yeast ferment filtrate (also known as Pitera - a trademarked name for the filtrate reserved by the SK-II brand). It helps attract water to the upper layer of the skin, can help neutralize antioxidants and can be helpful in evening out the skin tone. It might be somewhat helpful in preventing premature skin aging but solid evidence is lacking. A small manufacturer study also shows that, when used in high concentrations, it can help reduce sebum production and help against blocked pores
Show more
Ingredient list view
Water, Polysorbate 20, Galactomyces ferment filtrate, Propanediol, Sodium pca, Glucose, Glycerin, Pseudoalteromonas ferment extract, Menthyl pca, Urea, Phytol, Lysine, Glycine, Glutamic acid, Allantoin, Gluconolactone, Calcium gluconate, Lactic acid, Isomalt, Sodium phytate, Potassium sorbate, Sodium benzoate, Dehydroacetic acid, Benzyl alcohol
Sources
- Effects of galactomyces ferment filtrate on epidermal barrier marker caspase-14 in human skin cells.
- Galactomyces fermentation filtrate prevents T helper 2-mediated reduction of filaggrin in an aryl hydrocarbon receptor-dependent manner
- The Effects of Essence-Formed Cosmetic Ingredients Containing the Galactomyces Ferment Filtrate on Skin Improvements in Keratinization, Pores, Sebum Excretion, Brightness and Acne
- Antioxidants cinnamaldehyde and Galactomyces fermentation filtrate downregulate senescence marker CDKN2A/p16INK4A via NRF2 activation in keratinocytes
- Galactomyces Ferment Filtrate Suppresses Reactive Oxygen Species Generation and Promotes Cellular Redox Balance in Human Melanocytes via Nrf2-ARE Pathway
- Galactomyces Ferment Filtrate Suppresses Melanization and Oxidative Stress in Epidermal Melanocytes
- Topical Glucose Induces Claudin-1 and Filaggrin Expression in a Mouse Model of Atopic Dermatitis and in Keratinocyte Culture, Exerting Anti-inflammatory Effects by Repairing Skin Barrier Function
- Glycerol and the skin: holistic approach to its origin and functions
- Topical urea in skincare: A review
- Methods using phytol to improve the appearance of skin and compositions for such methods
- Topical palmitoyl pentapeptide provides improvement in photoaged human facial skin
- Effect of Topical Application of Glycine and Proline on Recalcitrant Leg Ulcers of Prolidase Deficiency
- Functional glycine receptor in cultured human keratinocytes
- Profile of wound healing process induced by allantoin
- 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
- Epidermal and dermal effects of topical lactic acid
- Dual Effects of Alpha-Hydroxy Acids on the Skin