Works for:
based on ingredients and %- Moisturizing
- Evens skin tone
- Anti-aging
- Anti-oxidation
Can it cause trouble?
- Irritation risk: low
- Comedogenic risk ingredients: 0
Key actives
Product Summary
"SkinTra - Guard Your Skin" is effective for: Moisturizing
This product could be helpful for: Evens skin tone and Anti-aging, but its actives are not the most effective or are not well-studied.
Ingredient callouts
- This product contains acids (gluconolactone 0.15% - 0.70% and lactic acid 0.10% - 0.50%). Their concentration is low, and they will not have a strong exfoliating effect. Instead, they work to support the skin natural acid mantle and to attract water (as humectants). PHAs (gluconolactone) especially are great for improving skin hydration. They might be even able to stimulate the production of skin's natural humectants and support the healthy skin microbiome.
- Humectants (isomalt 0.10% - 0.35%, glutamic acid 0.35% - 0.85%, glycine 0.40% - 0.90%, urea 0.85% - 1.25%, glycerin 1.50% - 2.30%, sodium pca 2.10% - 3.10% and pitera 3.50% - 5.20%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
Anti-oxidation
This product contains antioxidants (galactomyces ferment filtrate) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).
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
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
Moisturizing
This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": galactomyces ferment filtrate, glutamic acid.
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. If the air is dry, humectants can speed up the moisture loss from the skin. This is why it is a good idea to use another product on top of this one to help "seal in" the moisture (look for ingredients like dimethicone, squalane, oils and butters).
The following ingredients in this product are especially good for supporting the skin barrier and helping with the hydration level: urea
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
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
Naturally present in skin and helps to attract water to its upper layer
Naturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Helps to attract water to the upper layer of the skin and can help restore the skin barrier function
Helps attract water to the upper layer of the skin
An amino-acid that helps attract water to the upper layer of the skin
Helps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function
Helps attract water to the upper layer of the skin and helps to improve appearance of the product
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
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
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)
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
Anti-aging
This product contains galactomyces ferment filtrate, lysine. These ingredients 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.
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
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
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
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)
Evens skin tone
The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: galactomyces ferment filtrate.
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
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
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)
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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Potential irritants
Comedogenic ingredients
No comedogenic ingredients detected
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Key Actives
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
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
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
Naturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations
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
Naturally present in skin and helps to attract water to its upper layer
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Helps to attract water to the upper layer of the skin and can help restore the skin barrier function
An amino-acid that helps attract water to the upper layer of the skin
Helps attract water to the upper layer of the skin
Potential irritants
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
A preservative. Can be used to mask unpleasant smell. Can be irritating
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
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)
Comedogenic ingredients
We couldn't find any comedogenic ingredients in this product
All ingredients
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
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
Naturally present in skin and helps to attract water to its upper layer
Helps attract water to the upper layer of the skin. Could be helpful in restoring the skin barrier function
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Naturally present in skin (urea makes up about 7% of natural moisturizing factors in skin). Attracts water to the upper layer of the skin. Also has a positive effect on the skin barrier beyond the humectant action. Can enhance penetration of other ingredients. Is an exfoliating ingredient when used in high concentrations
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
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
Helps to attract water to the upper layer of the skin and can help restore the skin barrier function
An amino-acid that helps attract water to the upper layer of the skin
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
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
Helps attract water to the upper layer of the skin and helps to improve appearance of the product
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 preservative. Can be used to mask unpleasant smell. Can be irritating
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
- 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
- 4 Final Report on the Safety Assessment of Sodium Dehydroacetate and Dehydroacetic Acid