Principia Retinol Review

Principia Retinol
0.3
/ 10
Moisturizing
0.6 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
2.5Anti-wrinkle icon/ 10
Anti-wrinkle
Review

Does Principia Retinol Work?

 
According to CreamScan AI's analysis of the ingredient list, here’s what Principia Retinol has to offer:
 
  • A bit of moisturizing. It has a moisturizing rating of 0.3 out of 10.
  • Modest anti-wrinkle efficacy: Principia Retinol has an anti-wrinkle rating of 2.5 out of 10 so you may expect some, although limited, effect on wrinkles.

Key Benefits of Principia Retinol

 
These are the key benefits you can expect from using Principia Retinol:
 

Slight Moisturizing When Used Alone

According to CreamScan analysis, Principia Retinol is slightly moisturizing, with a moisturizing rating of 0.3 out of 10.

Is it more humectant or occlusive? This product is purely humectant, but with a low Humectancy of 0.6 out of 10. It has zero Occlusivity as we didn't find any occlusive ingredients on the ingredient list.

This type of product provides relatively light moisturizing on its own but can contribute to overall moisturizing efficacy when used as part of a skincare routine, alongside another moisturizer.

Tip: Certain studies suggest that humectants alone may not effectively moisturize the skin. If you use this product as your only moisturizer, we recommend following it with one that contains at least some occlusive ingredients.

Please refer to the Ratings section below for details of the moisturizing rating calculation.

Modest Anti-Wrinkle Efficacy

According to CreamScan analysis, Principia Retinol has a modest level of anti-wrinkle efficacy, rated 2.5 out of 10.

It contains one ingredient with proven anti-wrinkle efficacy: Retinol (est. ≈0.1%), 
 the most effective non-prescription anti-wrinkle ingredient. Numerous clinical studies have shown its positive effects at concentrations as low as 0.1%. A study with 36 participants (Kafi et al.) confirmed that a lotion containing 0.4% retinol reduced wrinkle severity by 21% after 24 weeks of use, compared to the same formulation without retinol (vehicle).
 
Moisturizers, when used regularly, are proven to prevent wrinkle formation and even reduce existing wrinkles. Therefore, this product, like any other moisturizer, can deliver some anti-wrinkle effects through its moisturizing action.
 

Please refer to the Ratings section below for details of the anti-wrinkle rating calculation.

Please note that this is not a complete list of benefits. We are in the process of enhancing our AI model to incorporate anti-pigmentation, exfoliation and anti-acne ratings.

Things to Be Aware Of: Principia Retinol

 
CreamScan AI identified a few things to consider before adding Principia Retinol to your skincare routine:
 

May Increase Skin Photosensitivity Due to Retinol

This product contains retinol, which offers powerful anti-wrinkle benefits. The mechanism behind retinol’s action is boosting cell turnover. This process exposes new, more delicate skin, making it more vulnerable to sun damage.

As a result, using products with retinol may increase the skin's sensitivity, making it more prone to sunburn or irritation when exposed to UV rays.

To protect the skin, dermatologists recommend applying a broad-spectrum sunscreen with at least SPF 30 throughout the duration of retinol treatment, along with avoiding direct sun exposure. Retinol should be used at night, as it is sensitive to sunlight and can lose its potency when exposed to UV rays.

Please always check the manufacturer's instructions for using the retinol-containing products, either on their website or product label.

Pros & Cons of Principia Retinol

 
Here’s an overview of the pros and cons of Principia Retinol to help you decide if it’s the right choice for your skincare routine:
 

Pros:

  • Provides relatively light moisturizing on its own but can contribute to the moisturizing efficacy of any skincare routine
  • Offers modest anti-wrinkle efficacy

Cons: 

  • May increase skin photosensitivity due to retinol

Ingredients

Est. % Ingredient Origin Functions
95
0.1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Retinol
Function:
Origin:
Polyacrylate Crosspolymer-6
Function:
Origin:
Sodium Gluconate
Function:
Origin:
Propanediol
Function:
Origin:
C15-19 Alkane
Function:
Origin:
Arachidyl Alcohol
Function:
Origin:
Behenyl Alcohol
Function:
Origin:
Arachidyl Glucoside
Function:
Origin:
Tocopheryl Acetate
Function:
Origin:
Polysorbate 20
Function:
Origin:
Salicylic Acid
Function:
Origin:
Sodium Diethylenetriamine Pentamethylene Phosphonate
Function:
Origin:
Sodium Gluceptate
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Caprylyl Glycol
Function:
Origin:

Ratings

All humectants
0.6
0.3
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
0.3
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 0.6 10
0.6
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
0.3
Ingredient Est. % Benchmark Humectancy
0.3
0.3
All humectants 0.6 10
0.6
All humectants
0.6
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
None
All occlusives 0.0 20
0.0
All occlusives
0.0
None
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
10 /10 0.4 0.1 2.5
Total
2.5
Retinol
2.5
Ingredient anti-wrinkle power
10 /10
when present at, %
0.4
in this formula, est. %
0.1
Anti-wrinkle rating
2.5
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
All antioxidants 0.3 3 No
All antioxidants
0.3
Tocopheryl Acetate
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
All soothing 0.3 5 No
All soothing
0.3
0.3
Benchmark
5

Ingredients explained

Water
Est. %95
Function
Origin
WaterThe most used ingredient in skincare. Its concentration defines the product texture: rich creams may have about 50% of water while a light jelly about 90%. Water doesn’t moisturize the skin by itself and is used in skincare as a solvent for other ingredients.
Retinol
Est. %0.1
Function
Origin
Retinol

One of the most famous and well-researched anti-aging ingredients with a maximum anti-wrinkle power of 10 out of 10. It is proven to decrease wrinkles and help the skin regain its thickness, firmness, and texture. Retinol is also effective in treating pigmentation issues such as dark spots and acne.

Polyacrylate Crosspolymer-6
Est. %0.3
Function
Origin
Polyacrylate Crosspolymer-6A polymeric ingredient that works best in water-based formulas to create gel textures. It helps to stabilize emulsions and control viscosity.
Sodium Gluconate
Est. %0.3
Function
Origin
Sodium GluconateA chelating ingredient that ensures that the harmful metal ions in a formula are unreactive. It also protects other ingredients from degrading.
Propanediol
Est. %0.3
Function
Origin
PropanediolAn excellent solvent capable of mixing water with normally water-insoluble ingredients. It also functions as a humectant due to its water-loving alcohol groups. Propanediol can control the viscosity of a product by reducing its thickness.
C15-19 Alkane
Est. %0.3
Function
Origin
C15-19 Alkane
Arachidyl Alcohol
Est. %0.3
Function
Origin
Arachidyl AlcoholA non-drying fatty alcohol that functions as an emollient, emulsion stabilizer, and viscosity controlling agent. It also produces a mattifying effect when applied in a skincare product onto the skin.
Behenyl Alcohol
Est. %0.3
Function
Origin
Behenyl AlcoholA fatty alcohol with emollient properties. It is used as a co-emulsifier and thickener and tends to result in a product with a smooth and creamy application texture.
Arachidyl Glucoside
Est. %0.3
Function
Origin
Arachidyl GlucosideA mild cleanser and emulsifier that helps oil and water to mix and form emulsions.
Tocopheryl Acetate
Est. %0.3
Function
Origin
Tocopheryl Acetate

An antioxidant derivative of tocopherol (vitamin E). It helps to protect cells from free radicals and UV damage through the conversion to active vitamin E in the skin. It is more stable than tocopherol.

Polysorbate 20
Est. %0.3
Function
Origin
Polysorbate 20A viscous, amber-colored liquid that functions as a solubilizer to disperse small amounts of oil into a large water phase. Polysorbate 20 is frequently used to solubilize fragrance oils into water-based emulsions.
Salicylic Acid
Est. %0.3
Function
Origin
Salicylic AcidThis effective peeling and anti-inflammatory BHA is used as an anti-acne agent and works by breaking down the junctions between dead skin cells. This results in the peeling of dead skin and the unclogging of pores.
Sodium Diethylenetriamine Pentamethylene Phosphonate
Est. %0.3
Function
Origin
Sodium Diethylenetriamine Pentamethylene Phosphonate
Sodium Gluceptate
Est. %0.3
Function
Origin
Sodium Gluceptate
Phenoxyethanol
Est. %0.3
Function
Origin
PhenoxyethanolThe most frequently used preservative in skincare. It is a clear, oil-like liquid synthetic substance that protects products from harmful bacteria and yeast, whilst still leaving skin microflora unharmed. It is confirmed by research to be harmless.
Caprylyl Glycol
Est. %0.3
Function
Origin
Caprylyl GlycolAn emollient that improves product spreadability and offers a silky feel on the skin. It also acts as a preservative booster that improves the efficacy of other preservatives. According to the manufacturer, it is also a humectant moisturizer.