Works for:
based on ingredients and %- Moisturizing
- Exfoliation
- Anti-blemish
- Anti-aging
Can it cause trouble?
- Irritation risk: high
- Comedogenic risk ingredients: 2
Key actives
Product Summary
"Kerstin Florian - Correcting Refining Toner" is effective for: Anti-inflammatory, Moisturizing, Exfoliation, Anti-blemish, Evens skin tone and Anti-aging
Ingredient callouts
- Salicylic acid (1.00% - 1.20%). This is an oil-soluble exfoliating acid. Because of this property, it can work inside pores and help reduce the congestion. It has an anti-inflammatory effect and is used to treat acne. Because it is a quite strong exfoliator, be careful with using this product too often: it could result in over-exfoliation.
- Humectants (alanine 0.10% - 0.20%, glutamic acid 0.15% - 0.30%, glycine 0.15% - 0.30%, sodium pca 0.25% - 0.45%, betaine 0.30% - 0.50% and glycerin 2.40% - 3.00%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
Price
The product retails from 37.10$ up to 53.00$ in the United States and for 59.50A$ in Australia.
For a detailed price comparison: click here.
Anti-aging
What does the product description say?
Niacinamide (Vitamin B3) helps counteract photodamage and activate collagen synthesis to smooth the look of fine lines and wrinkles.
Source: Skinstore
This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains niacinamide.
These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: lysine, serine, threonine.
Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.
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
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
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
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
Might be helpful against blemishes, work as an anti-oxidant, reduce inflammation and improve skin's ability to hold on to moisture, but more research is needed to confirm its effectiveness when applied topically to human skin
Anti-blemish
What does the product description say?
Fortified with Salicylic Acid and Phytic Acids, the fluid formula gently exfoliates the surface layer of skin to remove dead skin cells and decongest clogged pores, helping to combat bacteria and balance skin’s natural pH levels.
Source: Skinstore
This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide, salicylic acid. These ingredients is used for treating acne and can have a noticeable effect.
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
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
Might be helpful against blemishes, work as an anti-oxidant, reduce inflammation and improve skin's ability to hold on to moisture, but more research is needed to confirm its effectiveness when applied topically to human skin
Evens skin tone
This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: niacinamide, salicylic acid
The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually can help even out the skin tone: alanine.
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.
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
An amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
Exfoliation
What does the product description say?
Fortified with Salicylic Acid and Phytic Acids, the fluid formula gently exfoliates the surface layer of skin to remove dead skin cells and decongest clogged pores, helping to combat bacteria and balance skin’s natural pH levels.
Source: Skinstore
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: salicylic acid.
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
Moisturizing
What does the product description say?
Kerstin Florian Correcting Refining Toner has natural soothing, moisturizing and purifying botanicals to calm, balance and hydrate.
Source: SkincareRX
This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": alanine, betaine.
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: niacinamide
Naturally present in skin and helps to attract water to its upper layer
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
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
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
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
Helps attract water to the upper layer of the skin and improves the product texture
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
An amino-acid that helps to attract water to the upper layer of the skin and might help to lighten the skin, but solid evidence is lacking
A plant extract that can help to attract water to the upper layer of the skin and might have some anti-oxidant and anti-inflammatory properties
Derived from brown algae. Helps attract water to the upper layer of the skin
Helps attract water to the upper layer of the skin and improves the product texture
Used to create a nice product texture and help delivery of other ingredients. Might be somewhat helpful in attracting water to the upper layer of the skin
Helps preserve products and creates a nice product texture
An amino acid that is naturally present in skin and helps keep it hydrated. When used together with AHAs, it can reduce their irritating effect on the skin
Might be helpful against blemishes, work as an anti-oxidant, reduce inflammation and improve skin's ability to hold on to moisture, but more research is needed to confirm its effectiveness when applied topically to human skin
Might be somewhat helpful in reducing hyperpigmentation and neutralizing free radicals but its typical concentration in a product is too low for having an effect
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Exfoliation | |
| Moisturizing | |
| Anti-blemish |
Total Promises Fulfilled score: 100/100.
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Potential irritants
Comedogenic ingredients
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 Kerstin Florian Correcting Refining Toner | Current | $37.10 | |
Skindivision PHA + BHA Perfecting Toner | 85% | $19.00 | |
 Perricone MD Retinol Treatment & Moisturizer | 85% | $45.00 | |
Skin proud Daily AHA BHA Detox Tonic with Glycolic, Lactic and Salicylic Acid | 84% | $30.00 | |
 Pestle & Mortar Clarify 2% BHA salicylic toner | 84% | $30.00 | |
 Paula's choice Pore-Reducing Toner | 82% | $21.00 |
Key Actives
Potential irritants
Comedogenic ingredients
All ingredients
Ingredient list view
Water, Alcohol denat., Butylene glycol, Hamamelis virginiana water, Glycerin, Phytic acid, Cucumis sativus fruit extract, Niacinamide, Salicylic acid, Carbomer, Peg-60 almond glycerides, Oleanolic acid, Caprylyl glycol, Nordihydroguaiaretic acid, Alcohol, Hydrolyzed algin, Ammonium hydroxide, Sea water, Chlorella vulgaris extract, Betaine, Lavandula angustifolia oil, Boerhavia diffusa root extract, Sodium pca, Chamomilla recutita flower extract, Sorbitol, Proline, Serine, Glycine, Glutamic acid, Lysine, Alanine, Arginine, Threonine
- Glycerol and the skin: holistic approach to its origin and functions
- 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
- 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
- Salicylic acid as a peeling agent: a comprehensive review
- Beta Hydroxy Acids
- A review of toxicity from topical salicylic acid preparations
- Glycolic Acid Peels Versus Salicylic–Mandelic Acid Peels in Active Acne Vulgaris and Post‐Acne Scarring and Hyperpigmentation: A Comparative Study
- Effectiveness of the formulation that containing oleanolic acid 3% on inhibition of 5-α reductase activity on skin of patients with acne
- The effect of ursolic and oleanolic acids on human skin fibroblast cells
- Nordihydroguaiaretic acid, an inhibitor of lipoxygenase, also inhibits cytochrome P-450-mediated monooxygenase activity in rat epidermal and hepatic microsomes.
- Antimutagenic and antitumorigenic activities of nordihydroguaiaretic acid
- Estrogenic activity of an antioxidant, nordihydroguaiaretic acid (NDGA)
- Molecular mechanisms and clinical applications of nordihydroguaiaretic acid (NDGA) and its derivatives: An update
- Safety Assessment of Plant Polysaccharide Gums as Used in Cosmetics
- Use of boerhavia diffusa extract for skin relief
- Plant-Derived Immunomodulators
- 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
- Combination of amino acids reduces pigmentation in B16F0 melanoma cells