Medix 5.5 Vitamin C + Niacinamide

Medix 5.5 Vitamin C + Niacinamide

Efficacy100/100IrritancyHigh

Works for

Cleansing
Sodium c14-16 olefin sulfonate, Cocamidopropyl betaine + 7 more
Cleanses gently
What the product description says
“Skin Perfecting Body Wash”
Source: Medix 5.5

This product works by removing dirt and oil from the surface of the skin. It uses a combination of mild cleansing agents (cocamide mipa, cocamidopropyl betaine, coconut acid, decyl glucoside, sodium c14-16 olefin sulfonate, sodium cocoyl isethionate, sorbeth-230 tetraoleate, sorbitan laurate, sorbitan oleate decylglucoside crosspolymer) and should be able to cleanse the skin gently. Still keep in mind that any cleansing can disrupt the skin barrier, and most people do not need to cleanse their skin more than once per day.

Even though this formulation is mild, the following cleansing agents could trigger an irritation or allergy for some people: cocamidopropyl betaine, decyl glucoside, sodium c14-16 olefin sulfonate

Sodium c14-16 olefin sulfonateEffect: HighHelps oil and water mix together and used as a cleansing agent. Can be irritating and is better avoided for sensitive skin~11–14%
Cocamidopropyl betaineEffect: HighHelps water and oil mix together. Used as a cleansing ingredient. Could be an allergen~5.9–7.2%
Sodium cocoyl isethionateEffect: HighHelps water and oil mix together. Can be used as a cleansing agent~3.7–4.5%
Coconut acidEffect: High~0.55–0.85%
Decyl glucosideEffect: HighHelps oil and water mix together. Can be irritating~0.55–0.85%
Sorbitan oleate decylglucoside crosspolymerEffect: HighHelps oil and water mix together. Used as a cleansing agent~0.35–0.65%
Sorbitan laurateEffect: HighHelps water and oil mix together~0.35–0.6%
Cocamide mipaEffect: HighSurfactant - foam booster, viscosity increasing agent - aqueous, emulsifying, emulsion stabilising, foam boosting, surfactant, and viscosity controlling. Comes from coconut acid. Doesn't appear to be a common irritant~0.3–0.55%
Sorbeth-230 tetraoleateEffect: High~0.3–0.55%
Anti-blemish
Side benefit · Niacinamide
Works well

This product can help reduce breakouts and clogged pores because it contains the following ingredient: niacinamide. This ingredient is used for treating acne and can have a noticeable effect.

NiacinamideHeroEffect: HighIs 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. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production~1.4–1.7%

Can it cause trouble?

Irritancy
4 strong irritants: Parfum, Hexyl cinnamal + 2 more — patch-test recommended
High risk
We flagged 19 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
Sodium c14-16 olefin sulfonateHelps oil and water mix together and used as a cleansing agent. Can be irritating and is better avoided for sensitive skinHigh~11–14%est.
Cocamidopropyl betaineHelps water and oil mix together. Used as a cleansing ingredient. Could be an allergenHigh~5.9–7.2%est.
Curcuma longa root extractA plant extract that can contain an active compound curcumin, that may have some anti-inflammatory properties when applied to the skin, but solid research is lacking and the typical concentration used in skincare products is too low. Can be an irritantHigh~0.5–0.75%est.
Decyl glucosideHelps oil and water mix together. Can be irritatingHigh~0.55–0.85%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.15–0.25%est.
Hexyl cinnamalA fragrance with jasmine smell. A likely irritantHigh~0.05–0.15%est.
LinaloolA fragrance. Can be irritatingHigh~0.05–0.1%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.05%est.
Sodium cocoyl isethionateHelps water and oil mix together. Can be used as a cleansing agentMedium~3.7–4.5%est.
Tetrahexyldecyl ascorbateBeing 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.Medium~1.1–1.3%est.
Terminalia ferdinandiana fruit extractA plant extract that might have some anti-oxidant effect in skin, but evidence is lackingMedium~0.9–1.1%est.
Aloe barbadensis leaf juice powderTraditionally 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 skinMedium~0.65–0.95%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~0.55–0.8%est.
Sorbitan laurateHelps water and oil mix togetherMedium~0.35–0.6%est.
Sorbitan oleate decylglucoside crosspolymerHelps oil and water mix together. Used as a cleansing agentMedium~0.35–0.65%est.
HydroxyacetophenoneUsed to increase effectiveness of preservativesMedium~0.25–0.45%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.25–0.45%est.
1,2-hexanediolA preservativeMedium~0.15–0.3%est.
Citric acidCan work as an exfoliant but is typically used to adjust the product pHMedium~0.15–0.25%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~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Sodium c14-16 olefin sulfonate~11–14%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps oil and water mix together and used as a cleansing agent. Can be irritating and is better avoided for sensitive skin

More about Sodium c14-16 olefin sulfonate
Cocamidopropyl betaine~5.9–7.2%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps water and oil mix together. Used as a cleansing ingredient. Could be an allergen

More about Cocamidopropyl betaine
Sodium cocoyl isethionate~3.7–4.5%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together. Can be used as a cleansing agent

More about Sodium cocoyl isethionate
Sodium chloride~2.3–2.8%
Formula
Irritation risk
Low

Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures

More about Sodium chloride
Glycerin~2–2.4%
Formula
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Panthenol~1.5–1.9%
Formula
Irritation risk
Low
Works for
Reduces rednessMoisturizingReduces irritation

Helps attract water to the upper layer of the skin and can help improve skin barrier function

More about Panthenol
Niacinamide~1.4–1.7%
Hero · Anti-blemish
Irritation risk
Low
Works for
Anti-blemishAnti-agingEvens skin toneMoisturizingReduces irritationAnti-inflammatoryAntibacterialReduces redness

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. The concentration of about 2% is effective for supporting the skin barrier and evening out the skin tone. Concentration of 4-6% is better for helping with acne and balancing the sebum production

More about Niacinamide
Tetrahexyldecyl ascorbate~1.1–1.3%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidationEvens skin toneAnti-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.

More about Tetrahexyldecyl ascorbate
Terminalia ferdinandiana fruit extract~0.9–1.1%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A plant extract that might have some anti-oxidant effect in skin, but evidence is lacking

More about Terminalia ferdinandiana fruit extract
Aloe barbadensis leaf juice powder~0.65–0.95%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

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

More about Aloe barbadensis leaf juice powder
Aminopropyl ascorbyl phosphate~0.55–0.8%
Irritant · medium
Irritation risk
Medium
Works for
Evens skin toneAnti-oxidationAnti-aging

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
Curcuma longa root extract~0.5–0.75%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatory

A plant extract that can contain an active compound curcumin, that may have some anti-inflammatory properties when applied to the skin, but solid research is lacking and the typical concentration used in skincare products is too low. Can be an irritant

More about Curcuma longa root extract
Decyl glucoside~0.55–0.85%
Irritant · high
Irritation risk
High
Works for
Cleansing

Helps oil and water mix together. Can be irritating

More about Decyl glucoside
Coconut acid~0.55–0.85%
Formula
Irritation risk
Low
Works for
Cleansing
More about Coconut acid
Polyquaternium-73~0.45–0.7%
Formula
Sodium isethionate~0.5–0.75%
Formula
Sodium benzoate~0.25–0.5%
Formula
Irritation risk
Low

A preservative

More about Sodium benzoate
Sorbitan laurate~0.35–0.6%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together

More about Sorbitan laurate
Sorbitan oleate decylglucoside crosspolymer~0.35–0.65%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together. Used as a cleansing agent

More about Sorbitan oleate decylglucoside crosspolymer
Sorbeth-230 tetraoleate~0.3–0.55%
Formula
Irritation risk
Low
Works for
Cleansing
More about Sorbeth-230 tetraoleate
Cocamide mipa~0.3–0.55%
Formula
Irritation risk
Low
Works for
Cleansing

Surfactant - foam booster, viscosity increasing agent - aqueous, emulsifying, emulsion stabilising, foam boosting, surfactant, and viscosity controlling. Comes from coconut acid. Doesn't appear to be a common irritant

More about Cocamide mipa
Hydroxyacetophenone~0.25–0.45%
Irritant · medium
Irritation risk
Medium

Used to increase effectiveness of preservatives

More about Hydroxyacetophenone
Tetrasodium glutamate diacetate~0.25–0.45%
Formula
Irritation risk
Low

Helps stabilize the product formulation

More about Tetrasodium glutamate diacetate
Caprylyl glycol~0.25–0.45%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
1,2-hexanediol~0.15–0.3%
Irritant · medium
Irritation risk
Medium

A preservative

More about 1,2-hexanediol
Parfum~0.15–0.25%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Citric acid~0.15–0.25%
Irritant · medium
Irritation risk
Medium

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

More about Citric acid
Sodium hydroxide~0.1–0.2%
Formula
Irritation risk
Low

Used to adjust the product's pH

More about Sodium hydroxide
Hexyl cinnamal~0.05–0.15%
Irritant · high
Irritation risk
High

A fragrance with jasmine smell. A likely irritant

More about Hexyl cinnamal
Linalool~0.05–0.1%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Limonene~0.05%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Ingredient list view

Water, Sodium c14-16 olefin sulfonate, Cocamidopropyl betaine, Sodium cocoyl isethionate, Sodium chloride, Glycerin, Panthenol, Niacinamide, Tetrahexyldecyl ascorbate, Terminalia ferdinandiana fruit extract, Aloe barbadensis leaf juice powder, Aminopropyl ascorbyl phosphate, Curcuma longa root extract, Decyl glucoside, Coconut acid, Polyquaternium-73, Sodium isethionate, Sodium benzoate, Sorbitan laurate, Sorbitan oleate decylglucoside crosspolymer, Sorbeth-230 tetraoleate, Cocamide mipa, Hydroxyacetophenone, Tetrasodium glutamate diacetate, Caprylyl glycol, 1,2-hexanediol, Parfum, Citric acid, Sodium hydroxide, Hexyl cinnamal, Linalool, Limonene

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Amazon USPrice as of 11/11 18:37 GMT
$17.99
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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
Medix 5.5Vitamin C + NiacinamideYOUR PRODUCTJones RoadShower GelBYOMABrightening Body WashLa Roche-PosayLipikar Nourishing Shower Gel
Match—78%74%72%
Price$17.99$36.00+$18.01$12.99−$5.00$17.99
Shared key ingredients—6 of 144 of 142 of 14
Key difference—Avena Sativa Kernel FlourAzelaic AcidPeg-55 Propylene Glycol Oleate
Irritancy High High High Medium
Drying alcohol————
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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 14 studies and safety reviews.

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  5. 5
  6. 6
Medix 5.5 Vitamin C + Niacinamide
Medix 5.5Vitamin C + Niacinamide

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