Prep Multifunction Derm Oil for Ladies

Prep Multifunction Derm Oil for Ladies

Efficacy68/100IrritancyHigh
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Works for

3 of 4 advertised claims delivered

Moisturizing
5 ingredients credited for this claim
Good support
What the product description says
“Its formula, enriched with precious Celisir Oil, is also effective for treating dehydrated skin and it helps or counteract skin aging.”
Source: SmallFlower

This product can help soften the skin and reduce its moisture loss with emollients and occlusives: caprylic/capric triglyceride, helianthus annuus seed oil.

Keep in mind that this product does not contain effective ingredients to attract water to the upper layer of the skin. This is why an additional product with humectants like glycerin or hyaluronic acid can be helpful (apply it before this product for the best results).

Glycine soja oilKey active· EmollientEffect: HighA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.~2.2–3.4%
Helianthus annuus seed oilKey active· Emollient, OcclusiveEffect: HighA great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function~3.2–4.8%
Isopropyl myristateKey active· EmollientEffect: HighAn emollient that helps soften the skin. Could be comedogenic~4–6%
Caprylic/capric triglycerideKey active· Emollient, OcclusiveEffect: HighA good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin~23–34%
Cetearyl ethylhexanoate· EmollientEffect: LowAn emollient that helps soften the skin~5.1–7.6%
Anti-aging
1 ingredient credited for this claim
Moderate support
What the product description says
“Its formula, enriched with precious Celisir Oil, is also effective for treating dehydrated skin and it helps or counteract skin aging.”
Source: SmallFlower

This product contains retinyl palmitate. 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.

Retinyl palmitateKey activeEffect: MediumThree 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~1.5–2.2%
Evens skin tone
1 ingredient credited for this claim
Moderate support
What the product description says
“Severe weight changes, in the event of pregnancy, rapid growth during adolescence, severe diets, and other situations may cause visible scars on the skin surface known as stretch marks.”
Source: SmallFlower

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

Retinyl palmitateKey activeEffect: MediumThree 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~1.5–2.2%
Anti-blemish
2 ingredients credited for this claim
Limited support
What the product description says
“Prep Derm Oil helps to improve the appearance of blemishes and skin spots, helping to find a uniform color on face and body.”
Source: SmallFlower

This product contains ingredients (retinyl palmitate) that could help reduce blemishes and clogged pores in theory, but there is not enough evidence that they actually work.

Retinyl palmitateKey activeEffect: MediumThree 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~1.5–2.2%
Rosmarinus officinalis leaf extractUnder-dosedEffect: MediumCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating~0.85–1.25%

Can it cause trouble?

Irritancy
12 strong irritants: Retinyl palmitate, Rosmarinus officinalis leaf extract + 10 more — patch-test recommended
High risk
We flagged 16 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~1.5–2.2%est.
Chamomilla recutita flower extractPlant extract that can have healing and anti-inflammatory properties. It is a potential allergen and can be irritatingHigh~1.1–1.6%est.
Rosmarinus officinalis leaf extractCan be helpful in reducing inflammation in skin, including inflamed acne. It can be irritatingHigh~0.85–1.25%est.
Calendula officinalis flower extractA plant extract that has some anti-oxidant and anti-bacterial properties. Can be irritatingHigh~0.55–1.25%est.
ParfumAn aromatic blend of unspecified and possibly irritating ingredientsHigh~0.45–1.1%est.
Benzyl salicylateA fragrance. Is a likely irritantHigh~0.4–0.95%est.
Alpha-isomethyl iononeA fragrance. Potential allergen and can be irritatingHigh~0.35–0.85%est.
CoumarinA fragrance. Is a likely skin allergen and can be irritatingHigh~0.3–0.75%est.
Amyl cinnamal—High~0.15–0.55%est.
CitronellolA fragrance. Can be irritatingHigh~0.1–0.45%est.
GeraniolA fragrance. Can be irritatingHigh~0.1–0.4%est.
FarnesolAdded to create a nice product smell. Can be irritatingHigh~0.1–0.3%est.
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~0.1–0.3%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 glycerinMedium~23–34%est.
Glycine soja oilA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.Medium~2.2–3.4%est.
Tocopheryl acetateA more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.Medium~1.7–2.6%est.
Comedogenic
3 ingredients rated 2 or more on the 0–5 pore-clogging scale
3 flagged
These ingredients have a comedogenic rating of 2 or more on a 0–5 scale; the table shows each one's rating. In leave-on products they can clog pores in acne-prone skin.
IngredientFunctionRatingEst. amount
Isopropyl myristateAn emollient that helps soften the skin. Could be comedogenic3/5~4–6%est.
Glycine soja oilA good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.2/5~2.2–3.4%est.
Ci 26100—2/5~0.1–0.3%est.
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Ingredients

Filter by role to see what each ingredient is doing.

Caprylic/capric triglyceride~23–34%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

A good mix of fatty acids that forms a protective layer on the skin. Improves the shelf life of products. Derived from coconut and glycerin

More about Caprylic/capric triglyceride
Triisononanoin~8.1–12.2%
Formula
Irritation risk
Low
More about Triisononanoin
Cetearyl ethylhexanoate~5.1–7.6%
Formula
Irritation risk
Low
Works for
Moisturizing

An emollient that helps soften the skin

More about Cetearyl ethylhexanoate
Isopropyl myristate~4–6%
Key activeComedogenic 3/5
Irritation risk
Low
Comedogenicity
3/5
Works for
Moisturizing

An emollient that helps soften the skin. Could be comedogenic

More about Isopropyl myristate
Helianthus annuus seed oil~3.2–4.8%
Key active
Irritation risk
Low
Works for
Moisturizing

A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function

More about Helianthus annuus seed oil
Glycine soja oil~2.2–3.4%
Key activeComedogenic 2/5Irritant · medium
Irritation risk
Medium
Comedogenicity
2/5
Works for
Moisturizing

A good emollient that helps soften the skin and helps repair its barrier function. It can clog pores if used in high concentrations.

More about Glycine soja oil
Tocopheryl acetate~1.7–2.6%
Irritant · medium
Irritation risk
Medium
Works for
Anti-oxidation

A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.

More about Tocopheryl acetate
Retinyl palmitate~1.5–2.2%
Key activeIrritant · high
Irritation risk
High
Works for
Evens skin toneAnti-blemishAnti-agingExfoliation

Three 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

More about Retinyl palmitate
Bisabolol~1.3–1.9%
Formula
Irritation risk
Low
Works for
Reduces irritationAnti-inflammatoryAnti-oxidation

An active component of chamomile plant that historically has been used to calm down irritated skin. A recent study shows that bisabolol indeed can have some anti-inflammatory effect on skin, even though conclusive data is lacking. Bisabolol has a sweet floral scent and can be added to products for its aromatic properties

More about Bisabolol
Chamomilla recutita flower extract~1.1–1.6%
Irritant · high
Irritation risk
High
Works for
Anti-inflammatory

Plant extract that can have healing and anti-inflammatory properties. It is a potential allergen and can be irritating

More about Chamomilla recutita flower extract
Rosmarinus officinalis leaf extract~0.85–1.25%
Under-dosedIrritant · high
Irritation risk
High
Works for
Anti-blemishAnti-oxidationAntibacterial

Can be helpful in reducing inflammation in skin, including inflamed acne. It can be irritating

More about Rosmarinus officinalis leaf extract
Calendula officinalis flower extract~0.55–1.25%
Irritant · high
Irritation risk
High
Works for
Anti-oxidation

A plant extract that has some anti-oxidant and anti-bacterial properties. Can be irritating

More about Calendula officinalis flower extract
Lavandula officinalis flower/extract~0.55–1.3%
Formula
Parfum~0.45–1.1%
Irritant · high
Irritation risk
High

An aromatic blend of unspecified and possibly irritating ingredients

More about Parfum
Benzyl salicylate~0.4–0.95%
Irritant · high
Irritation risk
High

A fragrance. Is a likely irritant

More about Benzyl salicylate
Alpha-isomethyl ionone~0.35–0.85%
Irritant · high
Irritation risk
High

A fragrance. Potential allergen and can be irritating

More about Alpha-isomethyl ionone
Coumarin~0.3–0.75%
Irritant · high
Irritation risk
High

A fragrance. Is a likely skin allergen and can be irritating

More about Coumarin
Amyl cinnamal~0.15–0.55%
Irritant · high
Irritation risk
High
More about Amyl cinnamal
Citronellol~0.1–0.45%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Citronellol
Geraniol~0.1–0.4%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Geraniol
Farnesol~0.1–0.3%
Irritant · high
Irritation risk
High

Added to create a nice product smell. Can be irritating

More about Farnesol
Limonene~0.1–0.3%
Irritant · high
Irritation risk
High

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

More about Limonene
Ci 26100~0.1–0.3%
Comedogenic 2/5
Irritation risk
Low
Comedogenicity
2/5
More about Ci 26100
Ingredient list view

Caprylic/capric triglyceride, Triisononanoin, Cetearyl ethylhexanoate, Isopropyl myristate, Helianthus annuus seed oil, Glycine soja oil, Tocopheryl acetate, Retinyl palmitate, Bisabolol, Chamomilla recutita flower extract, Rosmarinus officinalis leaf extract, Calendula officinalis flower extract, Lavandula officinalis flower/extract, Parfum, Benzyl salicylate, Alpha-isomethyl ionone, Coumarin, Amyl cinnamal, Citronellol, Geraniol, Farnesol, Limonene, Ci 26100

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Sources cited in this review

Every concentration estimate and effectiveness label is anchored to one of these 13 studies and safety reviews.

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Prep Multifunction Derm Oil for Ladies
PrepMultifunction Derm Oil for Ladies

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