Principia VITAMINA C-10

Principia VITAMINA C-10

Efficacy75/100IrritancyLow

Works for

Evens skin tone
Ferulic acid
May help
What the product description says
“Sérum com 10% de Vitamina C e 0,5% de Ácido Ferúlico com alta eficácia contra linhas finas, textura irregular e hiperpigmentação.”
Source: PRINCIPIA

The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: ferulic acid.

Ferulic acidKey activeEffect: MediumA 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%~2–3%
Anti-aging
Ferulic acid, Sodium ascorbyl phosphate
May help
What the product description says
“Sérum com 10% de Vitamina C e 0,5% de Ácido Ferúlico com alta eficácia contra linhas finas, textura irregular e hiperpigmentação.”
Source: PRINCIPIA

This product contains ferulic acid. 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.

Ferulic acidKey activeEffect: MediumA 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%~2–3%
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~4.3–6.5%
Anti-oxidation
Side benefit · Sodium ascorbyl phosphate, Ferulic acid
Works well

This product contains antioxidants (ferulic acid) 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 - sodium ascorbyl phosphate also can have an antioxidant effect, but there is less evidence to confirm their effectiveness in skin.

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~4.3–6.5%
Ferulic acidKey activeEffect: HighA 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%~2–3%
Moisturizing
Side benefit · Sodium hyaluronate, Caprylyl glycol
Works

This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": sodium hyaluronate, 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).

Sodium hyaluronateKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Attracts water into the upper layer of the skin~0.4–0.9%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.15–0.65%
Anti-blemish
Side benefit · 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~4.3–6.5%

Can it cause trouble?

Irritancy
4 flagged ingredients
Low risk
We flag 4 ingredients with irritancy potential; the product's overall irritancy is low. The table lists each ingredient's own rating.
IngredientFunctionIrritationEst. amount
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~4.3–6.5%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~2.8–4.3%est.
EthoxydiglycolHelps to improve the product consistencyMedium~1–1.5%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.15–0.65%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

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Ingredients

Filter by role to see what each ingredient is doing.

Water~40–60%
Formula
Irritation risk
Low

Plain old water

More about Water
Xanthan gum~10–16%
Formula
Irritation risk
Low
Works for
Cleansing

Used to create a thicker product consistency

More about Xanthan gum
Sodium ascorbyl phosphate~4.3–6.5%
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
Citric acid~2.8–4.3%
Irritant · medium
Irritation risk
Medium

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

More about Citric acid
Ferulic acid~2–3%
Key active
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryEvens skin tone

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%

More about Ferulic acid
Propanediol~1.6–2.3%
Formula
Irritation risk
Low

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

More about Propanediol
Ethoxydiglycol~1–1.5%
Irritant · medium
Irritation risk
Medium

Helps to improve the product consistency

More about Ethoxydiglycol
Sodium gluconate~0.6–1.35%
Formula
Irritation risk
Low

Helps stabilize product formulations

More about Sodium gluconate
Sodium hyaluronate~0.4–0.9%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Attracts water into the upper layer of the skin

More about Sodium hyaluronate
Caprylyl glycol~0.15–0.65%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Phenoxyethanol~0.1–0.45%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Sodium diethylenetriamine pentamethylene phosphonate~0.05–0.2%
Formula
Sodium gluceptate~0.05–0.1%
Formula
Ingredient list view

Water, Xanthan gum, Sodium ascorbyl phosphate, Citric acid, Ferulic acid, Propanediol, Ethoxydiglycol, Sodium gluconate, Sodium hyaluronate, Caprylyl glycol, Phenoxyethanol, Sodium diethylenetriamine pentamethylene phosphonate, Sodium gluceptate

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PRINCIPIA
≈ $12.51
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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
PrincipiaVITAMINA C-10YOUR PRODUCTSkintegraSuperba Cfrank bodyCollagen Boost SerumLive No B.S.Vitamin C + E Serum
Match—67%64%55%
Price—$34.59$19.67—
Shared key ingredients—3 of 33 of 33 of 3
Key difference——Lactic AcidTetrahexyldecyl Ascorbate
Irritancy Low Low Low Medium
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 12 studies and safety reviews.

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Principia VITAMINA C-10
PrincipiaVITAMINA C-10

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