La Roche-Posay Toleriane Ultra 8
Works for
1 of 1 advertised claim delivered
MoisturizingAllantoin, Carnosine + 2 moreGood evidence
“Only 8 ingredients and La Roche-Posay Thermal Water for an application that is as light as water, but more hydrating than a cream.”
This product contains good ingredients to attract water to the upper layer of the skin. These ingredients are called "humectants": allantoin, carnosine.
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).
Anti-oxidationNot advertised by the brand · CarnosineStrong evidence
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).
Anti-agingNot advertised by the brand · CarnosineModerate evidence
This product contains carnosine. 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.
Can it cause trouble?
Irritancy3 flagged ingredientsLow risk
ComedogenicClean of flagged comedogenic ingredientsNone flagged
User reviews
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Ingredients
Filter by role to see what each ingredient is doing.
Water~40–60%
Glycerin~4.2–6.2%
- Irritation risk
- Low
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 GlycerinPropanediol~3.2–4.8%
- Irritation risk
- Low
Acts as a solvent for other ingredients. Speeds up the absorption of other ingredients into the skin
More about PropanediolPentylene glycol~2.5–3.8%
- Irritation risk
- Medium
Used to preserve products, dissolve other ingredients and create a nice product texture
More about Pentylene glycolAllantoin~1.7–2.5%
- Irritation risk
- Low
Helps calm down inflammation in skin and can help reduce itching. Helps to repair the skin barrier and keep skin hydrated
More about AllantoinSodium chloride~1.1–1.6%
- Irritation risk
- Low
Used to stabilize mixtures of oil and water, and create thicker, gel-like product textures
More about Sodium chlorideCarnosine~0.4–0.9%
- Irritation risk
- Low
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
More about CarnosineCoco-betaine~0.55–1.25%
- Irritation risk
- High
Helps oil and water mix together and works as a cleansing agent. Can be allergenic
More about Coco-betaineCitric acid~0.05–0.15%
- Irritation risk
- Medium
Can work as an exfoliant but is typically used to adjust the product pH
More about Citric acidIngredient list view
Water, Glycerin, Propanediol, Pentylene glycol, Allantoin, Sodium chloride, Carnosine, Coco-betaine, Citric acid, Unknown
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Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 3 studies and safety reviews.
- 1
- 2
- 3
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