PRODUCT REVIEW
SOBEL SKIN Rx 35% Vitamin C Face Serum
Works for:
based on ingredients and %- Anti-aging
- Evens skin tone
- Moisturizing
- Anti-oxidation
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Can it cause trouble?
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What can the product work for?
Works for
Anti-aging
What does the product description say?
Dullness and Uneven Texture, Dark Spots, and Fine Lines and Wrinkles Formulation.
tetrahexyldecyl ascorbate
8.1% -
12.2%
Irritation risk:
Concentration: Effectiveness: HIGH
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
sodium ascorbyl phosphate
3.9% -
5.9%
Irritation risk:
Concentration: Effectiveness:
LOW
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
magnesium ascorbyl phosphate
2.8% -
4.3%
Irritation risk:
Concentration: Insufficient!
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?
Helps improves appearance of skin tone and dark spots.
tetrahexyldecyl ascorbate
8.1% -
12.2%
Irritation risk:
Concentration: Effectiveness: HIGH
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
magnesium ascorbyl phosphate
2.8% -
4.3%
Irritation risk:
Concentration: Insufficient!
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?
Dullness and Uneven Texture, Dark Spots, and Fine Lines and Wrinkles Formulation.
chondrus crispus extract
1.1% -
1.7%
Irritation risk: Comedogenicity: High
Concentration: Effectiveness: HIGH
Red algae extract that helps attract water to the upper layer of the skin and create a nicer product consistency
glycerin
1.7% -
2.5%
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
sodium hyaluronate
0.4% -
0.95%
Irritation risk:
Concentration: Effectiveness: HIGH
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin
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Anti-oxidation
tetrahexyldecyl ascorbate
8.1% -
12.2%
Irritation risk:
Concentration: Effectiveness: HIGH
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
sodium ascorbyl phosphate
3.9% -
5.9%
Irritation risk:
Concentration: Effectiveness:
MEDIUM
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
magnesium ascorbyl phosphate
2.8% -
4.3%
Irritation risk:
Concentration: Insufficient!
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
Honesty check
How honest is this product?
| Promise | Can it deliver? |
|---|---|
| Anti-aging | |
| Evens skin tone | |
| Moisturizing |
Total Promises Fulfilled score:
91/100.
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Can it cause trouble?
- Overall product irritation risk
- Acne & comedogenic risk ingredients: 1
Potential irritants
tetrahexyldecyl ascorbate
8.1% -
12.2%
Irritation risk:
Works for:
Anti-oxidation,
Evens skin tone,
Anti-aging
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
sodium ascorbyl phosphate
3.9% -
5.9%
Irritation risk:
Works for:
Anti-blemish,
Anti-oxidation,
Anti-aging
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
Show more
Comodogenic ingredients
chondrus crispus extract
1.1% -
1.7%
Irritation risk: Comedogenicity: High
Works for:
Moisturizing
Red algae extract that helps attract water to the upper layer of the skin and create a nicer product consistency
User reviews (0)
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| WIMJ similarity score |
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| Irritancy | IRRITANCY
LOW
| IRRITANCY
HIGH
| IRRITANCY
LOW
| IRRITANCY
LOW
| IRRITANCY
LOW
| IRRITANCY
MEDIUM
| IRRITANCY
LOW
| IRRITANCY
LOW
| IRRITANCY
LOW
| IRRITANCY
LOW
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LOW
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Ingredients & concentrations
All ingredients
Key Actives
tetrahexyldecyl ascorbate
8.1% -
12.2%
Irritation risk:
Works for:
Anti-oxidation,
Evens skin tone,
Anti-aging
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
sodium ascorbyl phosphate
3.9% -
5.9%
Irritation risk:
Works for:
Anti-blemish,
Anti-oxidation,
Anti-aging
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
Show more
Potential irritants
tetrahexyldecyl ascorbate
8.1% -
12.2%
Irritation risk:
Works for:
Anti-oxidation,
Evens skin tone,
Anti-aging
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
sodium ascorbyl phosphate
3.9% -
5.9%
Irritation risk:
Works for:
Anti-blemish,
Anti-oxidation,
Anti-aging
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
Show more
Comodogenic ingredients
chondrus crispus extract
1.1% -
1.7%
Irritation risk: Comedogenicity: High
Works for:
Moisturizing
Red algae extract that helps attract water to the upper layer of the skin and create a nicer product consistency
All ingredients
tetrahexyldecyl ascorbate
8.1% -
12.2%
Irritation risk:
Works for:
Anti-oxidation,
Evens skin tone,
Anti-aging
Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.
sodium ascorbyl phosphate
3.9% -
5.9%
Irritation risk:
Works for:
Anti-blemish,
Anti-oxidation,
Anti-aging
A stable derivative of vitamin C. It is oil-soluble which means it is more likely to penetrate the skin compared to the pure form of vitamin C (which is water-soluble), but it is less bio-available and is way less effective in stimulating collagen and reducing wrinkles compared to the pure form of vitamin C (L-ascorbic acid) and its other derivatives (for example, magnesium ascorbyl phosphate). At the same time, this vitamin C derivative has been shown in studies to be effective in reducing acne, blemishes and clogged pores. It is less irritating then the pure form of vitamin C
Show more
Ingredient list view
Water, Tetrahexyldecyl ascorbate, Sodium ascorbyl phosphate, Magnesium ascorbyl phosphate, Peg-8 dimethicone, Glycerin, Chondrus crispus extract, Sodium hyaluronate, Phenoxyethanol, Ethylhexylglycerin, Hydroxyethylcellulose
Sources
- Double-blind, half-face study comparing topical vitamin C and vehicle for rejuvenation of photodamage
- Application of tetra-isopalmitoyl ascorbic acid in cosmetic formulations: Stability studies and in vivo efficacy
- Sodium ascorbyl phosphate shows in vitro and in vivo efficacy in the prevention and treatment of acne vulgaris
- Sodium ascorbyl phosphate in topical microemulsions
- Final report of the safety assessment of L-Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Magnesium Ascorbyl Phosphate, Sodium Ascorbate, and Sodium Ascorbyl Phosphate as used in cosmetics
- Regulation of collagen synthesis in human dermal fibroblasts by the sodium and magnesium salts of ascorbyl-2-phosphate
- Comparison of clinical efficacies of sodium ascorbyl phosphate, retinol and their combination in acne treatment
- Application of l-ascorbic acid and its derivatives (sodium ascorbyl phosphate and magnesium ascorbyl phosphate) in topical cosmetic formulations: stability studies
- Sodium L-ascorbyl-2-phosphate 5% lotion for the treatment of acne vulgaris: a randomized, double-blind, controlled trial
- Stability, transdermal penetration, and cutaneous effects of ascorbic acid and its derivatives
- Topical L-ascorbic acid: percutaneous absorption studies
- Glycerol and the skin: holistic approach to its origin and functions
- Hyaluronic acid: A key molecule in skin aging