PRIORI Skincare

PRIORI LCA - Skin Renewal Creme

Name: PRIORI Skincare - PRIORI LCA - Skin Renewal Creme
Brand: PRIORI Skincare

Efficacy 75/100·Medium irritancy

Efficacy measures how well the formula delivers the claims the brand advertises · 1 of 1 advertised claim delivered

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Product claims breakdown

Moisturizing

5 ingredients contribute at the levels below

Good evidence

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

LACTIC ACIDRole: HeroAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)~4.3–6.5%

CAPRYLIC/CAPRIC TRIGLYCERIDERole: Under-dosedA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~0.15–0.6%

GLYCERINRole: Key activeOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~2.7–4%

SODIUM LACTATERole: Key activeHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product~3.4–5.1%

TOCOPHEROLRole: Key activePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.3–0.75%

Evens skin tone

LACTIC ACID at ~4.3–6.5% delivers this without it being on the label

Quiet bonus

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: lactic acid

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.

RETINYL PALMITATERole: Under-dosedThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effect~0.15–0.55%

Sodium lactateRole: Key activeHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product~3.4–5.1%

GlycerinRole: Key activeOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~2.7–4%

C12-15 alkyl benzoateRole: Key activeEnhances the product texture and makes it more spreadable. Helps reduce water loss from the outer layer of skin. Extands the shelf life by preventing bacteria growth~2.1–3.1%

Cetyl ricinoleateRole: Key activeAn emollient that helps soften the upper layer of the skin~1.7–2.6%

SericinRole: Key active~1.2–1.8%

PhospholipidsRole: Key activeEmollients that are naturaly present in skin. In addition, they help water and oil mix together in the product~0.4–0.9%

TocopherolRole: Key activePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.3–0.75%

Exfoliation

LACTIC ACID at ~4.3–6.5% delivers this without it being on the label

Quiet bonus

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: lactic acid.

Sodium lactateRole: Key activeHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the product~3.4–5.1%

GlycerinRole: Key activeOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~2.7–4%

Cetyl ricinoleateRole: Key activeAn emollient that helps soften the upper layer of the skin~1.7–2.6%

SericinRole: Key active~1.2–1.8%

PhospholipidsRole: Key activeEmollients that are naturaly present in skin. In addition, they help water and oil mix together in the product~0.4–0.9%

TocopherolRole: Key activePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.3–0.75%

Irritancy

9 flagged ingredients — patch-test recommended

High risk

We flagged 9 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.

IngredientFunctionIrritationEst. amount

Retinyl palmitateThree steps removed from the active form of vitamin A - retinoic acid. To have an effect in the skin, it first needs to be converted twice to become the retinoic acid. This means it is less potent than retinol, but could also be less irritating. Once converted to the retinoic acid in the skin, it helps against all signs of aging, improves skin cell turnover and helps fight blemishes and clogged pores. However, in many cosmetic formulations, it is used in a concentration that is too low to have the full effectHigh~0.15–0.55%est.

Citrus grandis fruit extract—High~0.05–0.3%est.

Lactic acidAn exfoliating and moisturizing alpha-hydroxy acid (AHA). Typically causes less irritation than other AHAs, for example, glycolic acid. At high concentrations (about 15%), lactic acid can help reduce lines and wrinkles. Recent studies show that lactic acid can support the "good" bacteria living on skin's surface (healthy skin microbiome)Low~4.3–6.5%est.

Sodium lactateHelps attract water to the upper layer of the skin. Is often used to adjust the pH level of the productLow~3.4–5.1%est.

Sericin—Low~1.2–1.8%est.

Ascorbyl palmitateBeing 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.Low~0.15–0.7%est.

Caprylic/capric triglycerideA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerinLow~0.15–0.6%est.

Disodium edtaStabilizes the product formulationLow~0.05–0.2%est.

EthylhexylglycerinA preservativeLow~0.05–0.15%est.

Comedogenic

Clean of flagged comedogenic ingredients

Low risk

~ marks concentrations estimated from label position and typical use levels