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Consonant VITAMIN C + LICORICE SERUM
Consonant

Consonant VITAMIN C + LICORICE SERUM

Efficacy50/100IrritancyLow
See all ingredients

Works for

Anti-aging
Aminopropyl ascorbyl phosphate, Sodium ascorbyl phosphate
May help
What the product description says
“00 USD A uniquely stable and tolerable Vitamin C serum to brighten skin and decrease visible signs of aging.”
Source: N/A

This product contains aminopropyl ascorbyl phosphate. This ingredient 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.

Aminopropyl ascorbyl phosphateKey activeEffect: MediumA more stable but less potent derivative of vitamin C. It can help neautralize free radicals and even out the skin tone if used in high enough concentration (required levels are likely to be much higher than for pure vitamin C, and solid studies are lacking at the moment)~2–2.9%
Sodium ascorbyl phosphateEffect: LowA 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~6.9–10.4%
Evens skin tone
Aminopropyl ascorbyl phosphate, Glycyrrhiza glabra root extract
May help
What the product description says
“Unlike other Vitamin C serums, our Vitamin C Serum's pH level is close to that of skin so irritation is minimized, even on sensitive skin.”
Source: N/A

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: aminopropyl ascorbyl phosphate, glycyrrhiza glabra root extract.

Aminopropyl ascorbyl phosphateKey activeEffect: MediumA more stable but less potent derivative of vitamin C. It can help neautralize free radicals and even out the skin tone if used in high enough concentration (required levels are likely to be much higher than for pure vitamin C, and solid studies are lacking at the moment)~2–2.9%
Glycyrrhiza glabra root extractEffect: LowA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals~3.4–5.1%
Moisturizing
No ingredient credited for this claim
Not delivered
What the product description says
“Sensitizing Ultra .”
Source: N/A

Does not contain good ingredients to help with moisturization.

Anti-blemish
Not advertised by the brand · Sodium ascorbyl phosphate
May help

This product might be able to help reduce blemishes and clogged pores because it contains sodium ascorbyl phosphate.

Sodium ascorbyl phosphateKey activeEffect: HighA 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~6.9–10.4%
Anti-oxidation
Not advertised by the brand · Sodium ascorbyl phosphate, Aminopropyl ascorbyl phosphate + 1 more
May help

This product contains antioxidants (aminopropyl ascorbyl phosphate, sodium ascorbyl phosphate) that might be able to help neutralize free radicals in skin to lessen the damage it gets from the UV light (sun). There is not enough evidence to confirm their effectiveness in skin though.

Sodium ascorbyl phosphateKey activeEffect: MediumA 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~6.9–10.4%
Aminopropyl ascorbyl phosphateKey activeEffect: MediumA more stable but less potent derivative of vitamin C. It can help neautralize free radicals and even out the skin tone if used in high enough concentration (required levels are likely to be much higher than for pure vitamin C, and solid studies are lacking at the moment)~2–2.9%
Glycyrrhiza glabra root extractEffect: LowA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals~3.4–5.1%

Can it cause trouble?

Irritancy
7 flagged ingredients
Low risk
We flag 7 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
Benzyl alcoholA preservative. Can be used to mask unpleasant smell. Can be irritatingHigh~0.2–0.75%est.
Sodium ascorbyl phosphateA 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 CMedium~6.9–10.4%est.
Glycyrrhiza glabra root extractA plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicalsMedium~3.4–5.1%est.
Aminopropyl ascorbyl phosphateA more stable but less potent derivative of vitamin C. It can help neautralize free radicals and even out the skin tone if used in high enough concentration (required levels are likely to be much higher than for pure vitamin C, and solid studies are lacking at the moment)Medium~2–2.9%est.
Benzoic acidA preservativeMedium~0.25–0.5%est.
Dehydroacetic acidA preservativeMedium~0.05–0.25%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.05–0.15%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged
Alternatives
Cheaper, or higher on efficacy
Radiance Serum 11% Vitamin C
Typology Radiance Serum 11% Vitamin C
Higher efficacy · 75/10057% match
$33.56
Vitamin C + AHA Facial Serum
Oz Naturals Vitamin C + AHA Facial Serum
Higher efficacy · 100/10057% match
$18.90
View all alternatives

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Ingredients

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Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Sodium ascorbyl phosphate~6.9–10.4%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-blemishAnti-oxidationAnti-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

More about Sodium ascorbyl phosphate
Glycyrrhiza glabra root extract~3.4–5.1%
Irritant · medium
Irritation risk
Medium
Works for
Reduces rednessEvens skin toneAnti-oxidationAnti-inflammatoryAntibacterial

A plant extract that can help lighten the skin and calm down inflammation. Might be helpful in neutralizing free radicals

More about Glycyrrhiza glabra root extract
Propanediol~2.6–3.8%
Formula
Irritation risk
Low

Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin

More about Propanediol
Aminopropyl ascorbyl phosphate~2–2.9%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Anti-oxidationAnti-agingEvens skin tone

A more stable but less potent derivative of vitamin C. It can help neautralize free radicals and even out the skin tone if used in high enough concentration (required levels are likely to be much higher than for pure vitamin C, and solid studies are lacking at the moment)

More about Aminopropyl ascorbyl phosphate
Hydroxyethylcellulose~1.1–1.6%
Formula
Irritation risk
Low

Used to thicken product formulations and create gel-like textures

More about Hydroxyethylcellulose
Benzyl alcohol~0.2–0.75%
Irritant · high
Irritation risk
High

A preservative. Can be used to mask unpleasant smell. Can be irritating

More about Benzyl alcohol
Benzoic acid~0.25–0.5%
Irritant · medium
Irritation risk
Medium

A preservative

More about Benzoic acid
Dehydroacetic acid~0.05–0.25%
Irritant · medium
Irritation risk
Medium

A preservative

More about Dehydroacetic acid
Citric acid~0.05–0.15%
Irritant · medium
Irritation risk
Medium

Can work as an exfoliant but is typically used to adjust the product pH

More about Citric acid
Ingredient list view

Water, Sodium ascorbyl phosphate, Glycyrrhiza glabra root extract, Propanediol, Aminopropyl ascorbyl phosphate, Hydroxyethylcellulose, Benzyl alcohol, Benzoic acid, Dehydroacetic acid, Citric acid

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Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
ConsonantVITAMIN C + LICORICE SERUMYOUR PRODUCTOz NaturalsVitamin C + AHA Facial SerumSwisseBeauty vitamin c 10% brightening booster serumTypologyRadiance Serum 11% Vitamin C
Match—57%57%57%
Price—$18.90—$33.56
Shared key ingredients—1 of 21 of 20 of 2
Key difference—Glycolic AcidNiacinamide3-O-Ethyl Ascorbic Acid
Irritancy Low Low Low Low
Drying alcohol————
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More alternatives: Reviva Labs Dual Source Vitamin C SerumPrincipia VITAMINA C-10

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 9 studies and safety reviews.

  1. 1
    Sodium ascorbyl phosphate shows in vitro and in vivo efficacy in the prevention and treatment of acne vulgarisncbi.nlm.nih.gov
  2. 2
    Sodium ascorbyl phosphate in topical microemulsionssciencedirect.com
  3. 3
    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 cosmeticseuropepmc.org
  4. 4
    Regulation of collagen synthesis in human dermal fibroblasts by the sodium and magnesium salts of ascorbyl-2-phosphatekarger.com
  5. 5
    Comparison of clinical efficacies of sodium ascorbyl phosphate, retinol and their combination in acne treatmentonlinelibrary.wiley.com
  6. 6
    Application of l-ascorbic acid and its derivatives (sodium ascorbyl phosphate and magnesium ascorbyl phosphate) in topical cosmetic formulations: stability studiesinis.iaea.org
Consonant VITAMIN C + LICORICE SERUM
ConsonantVITAMIN C + LICORICE SERUM
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