La Roche-Posay - Effaclar Duo+ SPF 30

La Roche-Posay Effaclar Duo+ SPF 30

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SPF 30
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WORKS FOR
  • Anti-aging
  • Anti-oxidation
  • Exfoliation
  • Moisturizing
  • Sun protection
  • Evens skin tone
  • Anti-blemish
  • +4 more
KEY INGREDIENTS
  • niacinamide
  • capryloyl salicylic acid
  • salicylic acid
  • 2-oleamido-1,3-octadecanediol
  • butyl methoxydibenzoylmethane
  • carnosine
  • diisopropyl sebacate
  • dimethicone
  • glycerin
  • homosalate
  • isopropyl lauroyl sarcosinate
  • octocrylene
  • silica
  • zinc pca
  • +11 more
PROMISES
FULFILLED
100 /100
IRRITANCY
MEDIUM
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Where to buy?

In stock £14.88
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Price as of 1/19/2022 1:15 GMT. More info
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User reviews

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Formula review

WIMJ summary

This product offers a good level of protection against both UVB and UVA rays.

This sunscreen uses organic (so-called "chemical") sunscreen filters. Organic, or "chemical" filters usually provide reliable sun protection and rarely leave a white cast. Sunscreens with organic filters can sting eyes.

This product can be considered "reef safe" because it does not contain the UV filters (oxybenzone and octinoxate) that can be harmful to coral reefs when present in the water in high concentrations.

See a mistake?
Promise
What does the product description say?
"This also works to prevent red and brown coloured marks that often appear after spots and blemishes."
WIMJ summary

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

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

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
MEDIUM
meets threshold
MEDIUM
meets threshold
See a mistake?
Promise
What does the product description say?
"It works to reduce the appearance of blemishes and blackheads and visibly blurs fine lines and redness for a mattified and velvet finish."
WIMJ summary

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

These ingredients in the product can also be helpful, even though there is less evidence for their effectiveness: carnosine.

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.

This product can also help prevent early signs of skin aging because it offers a good level of broad spectrum sun protection. Sun damage is the main cause of premature skin aging, and protecting your skin from the sun is the best anti-aging strategy.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
MEDIUM
meets threshold
LOW
meets threshold
See a mistake?
Promise
What does the product description say?
"This also works to prevent red and brown coloured marks that often appear after spots and blemishes."
WIMJ summary

This product offers broad spectrum sun protection. It means that it can prevent hyperpigmentation and help keep the skin tone even (sun damage is the main factor causing age spots, darkening of post-acne marks and other discolorations).

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
MEDIUM
meets threshold
LOW
does not meet threshold
See a mistake?
WIMJ summary

This product can help exfoliate the skin. In other words, it helps break down the bonds between dead cells on the surface of the skin and speed up the skin turnover. Skin often appears softer and brighter after exfoliation, but overdoing it can result in disrupted skin barrier. The following ingredient is doing the exfoliating job in this product: capryloyl salicylic acid.

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
HIGH
does not meet threshold
See a mistake?
Promise
What does the product description say?
"La Roche-Posay Effaclar Duo+ Unifiant Medium also hydrates skin for 24 hours as actives such as salicylic acid can often dry skin out and is even suitable for use for sensitive skin."
WIMJ summary

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. 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. The following ingredients in this product do the job: carnosine, glycerin.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: dimethicone, diisopropyl sebacate.

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) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

Ingredient Effectiveness Concentration Irritancy
HIGH
meets threshold
LOW
meets threshold

Potential irritants

IRRITANCY
MEDIUM
Ingredient Irritancy Skin Benefit
octocrylene
Has skin benefit
homosalate
Has skin benefit
alcohol denat.
does not have skin benefit

Ingredients by volume

Ingredient Estimated concentration
Plain old water
45% - 55%
A weak sunscreen that protects against the sun rays that cause sunburn (UVB) and is somewhat effective against the UVA rays. It is quite stable and can help stabilize other, more vulnerable, sunscreen ingredients like Avobenzone. It is an organic, or so called "chemical" sunscreen
5.7% - 7%
One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant
4% - 4.9%
A weak sunscreen that offers some protection against the sun rays that cause sunburn (UVB), but does not offer meaningful protection against protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen. When used in low concentrations, helps to stabilize the product formulation
3.6% - 4.4%
Octisalate. A UV filter. It offers some protection against the sun rays that cause sunburn (UVB), but does not protect against the most aging sun rays (UVA). It loses its effectiveness quickly when exposed to sunlight. It is an organic, or so called "chemical" sunscreen
3.2% - 3.9%
Produces temporary toning effect. Can help dissolve other ingredients or preserve products
1.9% - 2.4%
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
1.7% - 2%
Avobenzone. An organic, or so-called "chemical" UV filter. Protects against both UVA and UVB rays. Needs to be combined with other filters in a formulation to be stable.
2% - 2.5%
A silicone that helps to reduce water loss from the surface of the skin. Can temporarily "fill in" lines and wrinkles, absorb oil, and create a nice product finish
1.3% - 1.6%
Helps water and oil mix together
1% - 1.2%
Used to absorb oil and can temporarily mattify skin
1.1% - 1.4%
Helps soften the upper layer of the skin and create a nice product consistency
0.65% - 0.95%
Used to create an even product consistency. Can help boost efficiency of sunscreen filters
0.6% - 0.9%
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
0.5% - 0.8%
Helps oil and water mix together
0.55% - 0.8%
Helps soften the upper layer of the skin without creatng a greasy finish
0.5% - 0.8%
Helps oil and water mix together and can enhance the penetration of other ingredients into the skin. It can be irritating
0.45% - 0.7%
Helps oil and water mix together
0.5% - 0.7%
A compound that combines zinc with a hydrating ingredient PCA. Might to be helpful against acne and clogged pores. Can help calm down inflammation in skin. Could be helpful in reducing the formation of free radicals in skin. Might help to reduce fine lines in wrinkles, but solid evidence is missing
0.45% - 0.7%
Used to stabilize product formulations and create a nice product texture
0.35% - 0.65%
Helps oil and water mix together
0.45% - 0.7%
Helps soften the upper layer of the skin and slow down the water loss over time
0.3% - 0.55%
0.3% - 0.55%
0.3% - 0.5%
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
0.25% - 0.5%
0.25% - 0.5%
Used to create a thicker product consistency
0.2% - 0.4%
Stabilizes the product formulation
0.2% - 0.35%
0.2% - 0.35%
0.15% - 0.3%
0.15% - 0.25%
Used to create a thicker product consistency
0.1% - 0.2%
Used for skin exfoliation. It has an anti-inflammatory and anti-bacterial effect, helps to unclog pores, prevent blemishes and speed up healing of the existing ones. Sometimes referred to as a BHA (beta-hydroxy acid)
0.1% - 0.2%
An aromatic blend of unspecified and possibly irritating ingredients
0.05% - 0.1%

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