Works for:
based on ingredients and %- Evens skin tone
- Anti-aging
- Moisturizing
- Anti-oxidation
Can it cause trouble?
- Irritation risk: medium
- Comedogenic risk ingredients: 0
Key actives
Product Summary
"111SKIN - Y Theorem Concentrate" is effective for: Evens skin tone
This product could be helpful for: Anti-aging and Moisturizing, but its actives are not the most effective or are not well-studied.
Ingredient callouts
- Humectants (glycerin 2.10% - 3.20%). These ingredients help attract water to the upper layer of the skin and improve the skin hydration.
Price
The product retails from 131.30$ up to 175.00$ in the United States, from 87.50£ up to 3183.00£ in the United Kingdom and for 218.80CA$ in Canada.
For a detailed price comparison: click here.
Anti-oxidation
This product contains antioxidants (glutathione) 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 peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin
Plant extract. Might have some anti-oxidant properties. Can be irritating
A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
Evens skin tone
What does the product description say?
A boost of niacinamide offers anti-inflammatory properties, encouraging the illusion of a more even skin-tone.
Source: Lookfantastic CA
This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: glutathione
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.
A peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
Anti-aging
What does the product description say?
Key Benefits Formulated with NAC Y² complex Rich in antioxidants Helps reduce the appearance of fine lines and wrinkles Deeply hydrating Boosts skin's elasticity Ideal for use on damaged skin Cruelty-free UK300056706
Source: SpaceNK
This product contains glutathione. This ingredient help neutralize free radicals in skin. By doing so, they might be able to prevent early signs of aging (like fine lines and wrinkles), at least to some extent. These ingredients will not be able to "reverse" signs of aging.
A derivative of vitamin C that is more stable, but less bioavailable than the pure form of vitamin C. It does not penetrate the skin well, but has been shown to convert to pure vitamin C once in skin. It can be helpful in stimulating collagen production and lightening the skin tone, but the required concentration is likely to be very high
Moisturizing
What does the product description say?
It is ideal for stressed skin, providing essential support for increased hydration and reduced redness.
Source: Allbeauty
This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": glycerin, caprylyl glycol.
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).
A peptide that can help neutralize free radicals in skin and reduce melanin production resulting in skin lightening effect and reduction in hyperpigmentation. It can also help attract moisture to the upper layer of the skin
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
Softens the upper layer of the skin and can support skin barrier function
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
Helps preserve products and creates a nice product texture
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Evens skin tone | |
| Anti-aging | |
| Moisturizing |
Total Promises Fulfilled score: 83/100.
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Potential irritants
Comedogenic ingredients
No comedogenic ingredients detected
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| Product | Similarity | Price | Irritancy |
|---|---|---|---|
 111SKIN Y Theorem Concentrate | Current | $87.50 | |
I'm from Rice Serum | 42% | $-1.00 | |
 Luzern Laboratories Luzern WE3 Triple Action Serum Wrinkle Corrector | 41% | $170.00 | |
Routinely GOLDEN VITAMIN C SERUM | 41% | $29.90 | |
Bonafide Australia Ectoin Hydration Serum | 39% | $45.00 | |
 Beautycounter Countertime Tripeptide Radiance Serum | 39% | - |
Key Actives
Potential irritants
Comedogenic ingredients
We couldn't find any comedogenic ingredients in this product
All ingredients
Ingredient list view
Water, Methylpropanediol, Propanediol, Ectoin, Glycerin, Magnesium ascorbyl phosphate, Peg-40 hydrogenated castor oil, Caprylyl glycol, Propylene glycol, Glutathione, Melaleuca alternifolia leaf oil, Aesculus hippocastanum seed extract, Phenylpropanol, Tocopheryl acetate, Disodium edta, Acetyl cysteine, Limonene
- Glycerol and the skin: holistic approach to its origin and functions
- Stability, transdermal penetration, and cutaneous effects of ascorbic acid and its derivatives
- Topical L-ascorbic acid: percutaneous absorption studies
- Amended Safety Assessment of PEGylated Oils as Used in Cosmetics
- Surfactants and experimental irritant contact dermatitis
- Propylene Glycol
- Skin-sensitizing and irritant properties of propylene glycol
- Glutathione as a skin whitening agent: Facts, myths, evidence and controversies
- Glutathione for skin lightening: a regnant myth or evidence-based verity?
- Glutathione for skin lightening for dermatologists and cosmetologists
- Contact dermatitis as an adverse reaction to some topically used European herbal medicinal products – part 1: Achillea millefolium–Curcuma longa