Kate Ryan Skincare - Vitamin C Daytime Repair Serum

Kate Ryan Skincare Vitamin C Daytime Repair Serum

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WORKS FOR
  • Anti-aging
  • Anti-oxidation
  • Moisturizing
  • Evens skin tone
  • Anti-blemish
  • +2 more
KEY INGREDIENTS
  • tetrahexyldecyl ascorbate
  • magnesium ascorbyl phosphate
  • niacinamide
  • ferulic acid
  • ferulic acid
  • camellia sinensis leaf extract
  • carnitine
  • carnosine
  • centella asiatica extract
  • glutathione
  • hyaluronic acid
  • lycopene
  • phloretin
  • resveratrol
  • sodium pca
  • superoxide dismutase
  • tetrahydrobisdemethoxydiferuloylmethane
  • tetrahydrodemethoxydiferuloylmethane
  • tetrahydrodiferuloylmethane
  • thioctic acid
  • ubiquinone
  • +18 more
PROMISES
FULFILLED
100 /100
IRRITANCY
MEDIUM
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Formula review

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WIMJ summary

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

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
LOW
meets threshold
LOW
meets threshold
See a mistake?
Promise
What does the product description say?
"Fine Lines and Wrinkles Loss of Firmness/Sagging Large Pores, Clogged Pores Sun Damage/Discoloration Hydrate Brightening (Restore Radiance) Exfoliate Dark Circles, Crows Feet"
WIMJ summary

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains niacinamide, tetrahexyldecyl ascorbate.

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: carnosine, centella asiatica extract, ferulic acid, phloretin, resveratrol.

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.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
MEDIUM
meets threshold
See a mistake?
WIMJ summary

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: glutathione, niacinamide, tetrahexyldecyl ascorbate

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: ferulic acid, resveratrol, tetrahydrobisdemethoxydiferuloylmethane, tetrahydrodemethoxydiferuloylmethane, tetrahydrodiferuloylmethane.

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.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold
See a mistake?
Promise
What does the product description say?
"Fine Lines and Wrinkles Loss of Firmness/Sagging Large Pores, Clogged Pores Sun Damage/Discoloration Hydrate Brightening (Restore Radiance) Exfoliate Dark Circles, Crows Feet"
WIMJ summary

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": carnosine, hyaluronic 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: niacinamide

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold
See a mistake?
WIMJ summary

This product contains antioxidants (carnosine, ferulic acid, glutathione, lycopene, phloretin, resveratrol, superoxide dismutase, tetrahexyldecyl ascorbate, thioctic acid, ubiquinone) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

The following ingredients - camellia sinensis leaf extract, centella asiatica extract, tetrahydrobisdemethoxydiferuloylmethane, tetrahydrodemethoxydiferuloylmethane, tetrahydrodiferuloylmethane also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
meets threshold
HIGH
meets threshold

Potential irritants

IRRITANCY
MEDIUM

Ingredients by volume

Ingredient Estimated concentration
Plain old water
45% - 55%
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.
7.8% - 9.5%
Naturally present in skin and helps to attract water to its upper layer
4.2% - 5.2%
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
3.5% - 4.3%
A type of peptide. It attracts water to the upper layer of the skin. It can help neutralize free radicals in skin combatting the sun damage
2.9% - 3.6%
2.9% - 3.6%
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
2.1% - 2.6%
An anti-oxidant derived from curcumin (naturally present in tumeric). Is a part of the tetrahydrocurcuminoids complex (THC). The complex might be helpful in neutralizing free radicals in skin and possibly help even out the skin tone. Can be irritating
1.7% - 2%
An anti-oxidant derived from curcumin (naturally present in tumeric). Is a part of the tetrahydrocurcuminoids complex (THC). The complex might be helpful in neutralizing free radicals in skin and possibly help even out the skin tone. Can be irritating
1.4% - 1.8%
An anti-oxidant derived from curcumin (naturally present in tumeric). It might be helpful in neutralizing free radicals in skin and possibly help even out the skin tone. Can be irritating
1.3% - 1.6%
A potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%
1.1% - 1.3%
Might help neutralize free radicals in skin. Is claimed to be able to improve the appearance of undereye darkness but evidence is missing. Can be an allergen and cause irritation
1% - 1.2%
Being a lipid soluble form of vitamin C, it is more stable and can penetrate the skin better than L-Ascorbic acid. It is effective in protecting the skin from free radicals, as well as evening the skin tone, but is less effective in stimulating collagen production compared to L-Ascorbic acid.
0.9% - 1.1%
One of the best moisturizing ingredients. Attracts water into the upper layer of the skin. Naturally present in skin. Typically has large molecule size unless advertised otherwise on the product label. Helps support skin's barrier function and may help to reduce inflammation
0.8% - 1.2%
Can contain potent anti-oxidant compounds (abbreviated ECG, GCG, EGC, and EGCG) that might help protect the skin from free radicals. Can help calm down inflammation and has some anti-bacterial properties. Unfortunately, these antioxidants are unstable and lose their effectiveness very quickly in products. The concentration of the antioxidant compounds in the extract also tends to be low to be effective in topical formulation
0.8% - 1.2%
An antioxidant. Can help neutralize free radicals in skin
0.8% - 1.15%
Traditionally used to treat sunburns, dermatitis and inflammation, but evidence for its effectiveness is lacking. The extract can contain humectants that help attract water into the skin
0.7% - 1.05%
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
0.6% - 0.95%
0.6% - 0.9%
Coenzyme Q10. It helps neutralize free radicals in skin, improves skin hydration and might be helpful agains fine lines and wrinkles. It can be an allergen
0.55% - 0.85%
Helps neutralize free radicals in skin and might help reduce fine lines and wrinkles, as well as even out the skin tone
0.55% - 0.8%
A potent anti-oxidant that has been shown to be effective in neutralizing free radicals in skin. There seem to have a synergetic effect of ferulic acid, vitamin E and C, meaning that when the ingredients are used together, they enhance each other's ability protect the skin against free radicals. Ferulic acid also helps to stabilize other ingredients - including vitamins C and E. It can help to even out the skin tone. Ferulic acid is approved for use as a sunscreen ingredient in Japan in concentrations up to 10%
0.5% - 0.75%
A plant extract that has been shown to be able to reduce inflammation in skin, support restoration of skin barrier function, as well as support collagen production. Contains active compounds called centelloids: asiaticoside, madecasosside, asiatic acid and madecassic acid. Might be helpful in preventing stretch marks. It can be itself be irritating though.
0.55% - 0.85%
Helps neutralize free radicals in skin combating sun damage. Adds a red color to the product
0.4% - 0.65%
0.4% - 0.6%
An antioxidant enzyme that is naturally present in skin. It can help support skin barrier function and reduce inflammation in skin. It is used in topical medications for inflammatory skin conditions including atopic dermatitis (eczema) and psoriasis. There are three types of natural Superoxide Dismutase in human skin. The compound used in topical treatments and cosmetics are mimics of typically one of these natural variants
0.35% - 0.65%
0.3% - 0.55%
Can work as an exfoliant but is typically used to adjust the product pH
0.2% - 0.4%
Helps preserve products and creates a nice product texture
0.25% - 0.45%
A preservative. It helps prevent bacterial growth in cosmetic products
0.2% - 0.35%
A preservative
0.15% - 0.25%

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