Circadia Serum 71

Circadia Serum 71
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity

Review

Does Circadia Serum 71 work?

Based on the ingredient list analysis by CreamScan AI, these are the key benefits you can expect from using Circadia Serum 71:

  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.0 out of 10.

Lightweight moisturizer ideal for oily skin and a humectant boost for any skincare routine

According to CreamScan analysis, Circadia Serum 71 is quite moisturizing, with a moisturizing rating of 5.0 out of 10.

Is it more humectant or occlusive? It is purely humectant. It has zero occlusivity (we didn't find any occlusive ingredients on the ingredient list) and a maximum humectancy of 10 out of 10, primarily due to the high content of Propanediol (est. ≈6.0%) and Butylene Glycol (est. ≈3.0%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, providing significant hydration in a lightweight, fast-absorbing formula without any occlusive ingredients.

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.

But it’s not limited to oily skin - such a humectant boost will also positively contribute to the moisturizing efficacy of any skincare routine when used as a step before applying the main moisturizer. This type of formulation is typically used in serums, where a light, fast-absorbing texture is key.

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

Ingredients

Est. % Ingredient Origin Functions
80
6
4
3
2
1.5
1.3
1
0.3
0.3
0.3
0.3
Est. %
Water
Function:
Origin:
Propanediol
Function:
Origin:
Mandelic Acid
Function:
Origin:
Butylene Glycol
Function:
Origin:
Tranexamic Acid
Function:
Origin:
Sodium PCA
Function:
Origin:
Glycerin
Function:
Origin:
Methylglucoside Phosphate
Function:
Origin:
Azelaic Acid
Function:
Origin:
Magnesium Carboxymethyl Beta-Glucan
Function:
Origin:
Hydroxyethylcellulose
Function:
Origin:
Phenoxyethanol
Function:
Origin:

Ratings

All humectants
11.8
6
3
1.5
1.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
5.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 11.8 10
10.0
6
3
1.5
1.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
3
1.5
1.3
All humectants 11.8 10
10
All humectants
11.8
6
3
1.5
1.3
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
None
Total
0
None
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
None
All antioxidants 0 3 No
All antioxidants
0
None
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. %80
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.
Propanediol
Est. %6
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.
Mandelic Acid
Est. %4
Function
Origin
Mandelic AcidDerived from almonds, this ingredient is one of the gentlest AHAs and is used for its exfoliating and antimicrobial properties. It is particularly beneficial for acne but also helps to treat post-inflammatory hyperpigmentation.
Butylene Glycol
Est. %3
Function
Origin
Butylene Glycol

A clear, colorless liquid humectant that draws moisture to the skin. The humectancy of butylene glycol, owed to its two hydroxyl groups, is quite considerable, although not as powerful as glycerin, which contains three hydroxyl groups.

Tranexamic Acid
Est. %2
Function
Origin
Tranexamic AcidA synthetic amino acid that is used as an astringent to stop the bleeding from small cuts. It also has proven anti-pigment and redness-reducing effects.
Sodium PCA
Est. %1.5
Function
Origin
Sodium PCAOne of the most important parts of the skin's Natural Moisturizing Factor, a mixture of various compounds that keeps the skin’s surface well hydrated. Sodium PCA is used in skincare for its fantastic humectant properties.
Glycerin
Est. %1.3
Function
Origin
Glycerin

The most popular moisturizing ingredient in the world. It is a powerful humectant – cheap yet very effective.

Methylglucoside Phosphate
Est. %1
Function
Origin
Methylglucoside PhosphateA derivative of glucose. It is allegedly an activated form of glucose that may be able to serve as an energy source to the skin, although this claim has not been supported by any research.
Azelaic Acid
Est. %0.3
Function
Origin
Azelaic AcidA powerful dermatological ingredient that helps to treat acne and various pigmentation issues. It appears both in medicated creams and regular skincare. It reduces redness and inflammation but can be irritating in high concentrations.
Magnesium Carboxymethyl Beta-Glucan
Est. %0.3
Function
Origin
Magnesium Carboxymethyl Beta-Glucan
Hydroxyethylcellulose
Est. %0.3
Function
Origin
HydroxyethylcelluloseA naturally-derived thickener that can form clear gel textures without the slimy feeling, unlike some other natural gel-formers.
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.