Physicians Formula 24-Karat Gold Collagen Serum

Physicians Formula 24-Karat Gold Collagen Serum
5.0
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.0 Occlusivity icon Occlusivity
6Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants
$$$$

Review

Results you may expect from using Physicians Formula 24-Karat Gold Collagen Serum:

Based on the ingredient analysis by CreamScan, these are the key benefits you can expect from using Physicians Formula 24-Karat Gold Collagen Serum:

  • Moderate moisturizing. It has a moisturizing rating of 5.0 out of 10.
  • Significant anti-wrinkle efficacy. With an anti-wrinkle rating of 6.0 out of 10, Physicians Formula 24-Karat Gold Collagen Serum is effective in minimizing wrinkles.
  • Antioxidant protection.

How moisturizing is it?

Quite moisturizing: Physicians Formula 24-Karat Gold Collagen Serum has 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 Glycerin (est. ≈6.0%), Niacinamide (est. ≈4.0%) and Propanediol (est. ≈3.0%).

Tip: Studies suggest that humectants alone do not moisturize the skin. We recommend applying a product with some occlusive ingredients after the use of this one.

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

Anti-wrinkle efficacy

According to CreamScan analysis, Physicians Formula 24-Karat Gold Collagen Serum has a high anti-wrinkle rating of 6.0 out of 10. It contains one ingredient with proven anti-wrinkle efficacy: Niacinamide (est. ≈4.0%),
 one of the most effective and well-researched anti-wrinkle ingredients.
 
Among others, Physicians Formula 24-Karat Gold Collagen Serum also contains contains Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7, two ingredients marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of these ingredients provide insufficient evidence of efficacy according to CreamScan Research Evaluation Standards. Therefore, these ingredients do not contribute to the anti-wrinkle rating.
 

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

Antioxidant benefits

We estimate that Physicians Formula 24-Karat Gold Collagen Serum is rich (> 3%) in antioxidants, specifically Niacinamide (est. ≈4.0%).

A key benefit of antioxidants is their ability to reduce oxidative stress caused by free radicals and therefore prevent accelerated skin aging. Studies also show that antioxidants can protect against environmental damage such as UV radiation and pollution, and help reduce inflammation and skin redness.

Ingredients

Est. % Ingredient Origin Functions
75
6
4
3
2
1.5
1.3
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
0.3
0.3
0.3
0.3
0.3
0.3
0.3
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Ratings

All humectants
17.2
6
4
3
2
1
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.0
None
Benchmark
20
Moisturizing rating
5.0
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 17.2 10
10.0
6
4
3
2
1
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.0 20
0.0
None
Moisturizing rating
5.0
Ingredient Est. % Benchmark Humectancy
6
4
3
2
1
0.3
0.3
0.3
0.3
All humectants 17.2 10
10
All humectants
17.2
6
4
3
2
1
0.3
0.3
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
6 /10 4 4 6
n/a
- 0.3 -
n/a
- 0.3 -
Total
6
Niacinamide
6
Ingredient anti-wrinkle power
6 /10
when present at, %
4
in this formula, est. %
4
Palmitoyl Tripeptide-1
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Palmitoyl Tetrapeptide-7
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
6
Ingredient Est. % Benchmark
Rich in Antioxidants
4
1.3
1
All antioxidants 6.3 3 Rich in antioxidants
All antioxidants
6.3
Niacinamide
4
Caesalpinia Spinosa Fruit Extract
1.3
Kappaphycus Alvarezii Extract
1
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
4
All soothing 4 5 No
All soothing
4
4
Benchmark
5

Ingredients explained

Water
Est. %75
Function
Origin
The 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.
Glycerin
Est. %6
Function
Origin

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

Niacinamide
Est. %4
Function
Origin

Also known as vitamin B3, this ingredient is a true superstar with confirmed moisturizing, anti-acne, hyperpigmentation, and antioxidant benefits. Two studies confirm its significant anti-wrinkle efficacy.

Propanediol
Est. %3
Function
Origin
An 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.
Collagen
Est. %2
Function
Origin
A protein that builds all human tissues, especially skin and joints. It is used as a moisturizing humectant ingredient in skincare.
Gold (CI 77480)
Est. %1.5
Function
Origin

A colorant used in skincare, typically processed into fine particles for uniform dispersion. Its luxurious hue enhances product aesthetics, while its role as a slip and surface modifier improves texture and application. Despite touted anti-aging benefits, definitive scientific evidence is lacking.

Caesalpinia Spinosa Fruit Extract
Est. %1.3
Function
Origin
A powerful astringent ingredient extracted from Tara seed pods. It also has antioxidant benefits.
Kappaphycus Alvarezii Extract
Est. %1
Function
Origin
An emollient extract obtained from the red marine algae called elkhorn sea moss. It is a good source of moisturizing and antioxidant carrageenan, a seaweed polysaccharide.
Palmitoyl Tripeptide-1
Est. %0.3
Function
Origin

A small peptide consisting of three amino acids with anti-wrinkle effects. Together with Palmitoyl Tetrapeptide-7, it is a part of the popular anti-wrinkle complex called Matrixyl™ 3000.

Palmitoyl Tetrapeptide-7
Est. %0.3
Function
Origin

A synthetic peptide that mimics the activity of immunoglobulin G and signals to the skin to stop the inflammation. It has been shown in studies to reduce wrinkles and enhance collagen content.

Butylene Glycol
Est. %0.3
Function
Origin
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.
Hydroxyethylcellulose
Est. %0.3
Function
Origin
A naturally-derived thickener that can form clear gel textures without the slimy feeling, unlike some other natural gel-formers.
Carbomer
Est. %0.3
Function
Origin
A synthetic ingredient with the ability to gel water. When used in emulsions, such as lotions and creams, carbomer can also act as an emulsion stabilizer.
Disodium EDTA
Est. %0.3
Function
Origin
A synthetic chelator that helps to maintain the look and smell of a product by 'locking up' troublesome metal ions.
Ethylhexylglycerin
Est. %0.3
Function
Origin
A preservative booster derived from glycerin. It is commonly paired with other preservatives to improve their efficacy. Ethylhexylglycerin is also a humectant due to its chemical base of glycerin.
Hexylene Glycol
Est. %0.3
Function
Origin
A multifunctional ingredient that is best known for its use as a solvent. It can dissolve both water-based ingredients and oils. For this reason, it can also function as an emulsifier, allowing oil and water ingredients to mix and remain stable.
Agar
Est. %0.3
Function
Origin
A multifunctional jelly derived from red algae that can thicken water-based products.
Calcium Alginate
Est. %0.3
Function
Origin
Description is coming soon
Gellan Gum
Est. %0.3
Function
Origin
A polysaccharide gel created by a species of bacteria called Sphingomonas elodea. It is used to either create soft, viscous, elastic gels or hard, brittle gels.
1,2-Hexanediol
Est. %0.3
Function
Origin
A multi-functional formula helper. It is a well-studied preservtive against bacteria and can help pigments and fragrances disperse evenly in a formula.
Sodium Hydroxide
Est. %0.3
Function
Origin
An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin.
Sodium Lactate
Est. %0.3
Function
Origin
A sodium salt of lactic acid. Its main function is as a humectant but it can also serve as a pH adjuster. Additionally, sodium lactate can also be used as a chemical exfoliant due to its close chemical relation to lactic acid.
Polysorbate 20
Est. %0.3
Function
Origin
A 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.
Phenoxyethanol
Est. %0.3
Function
Origin
The 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
An 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.
Leuconostoc/Radish Root Ferment Filtrate
Est. %0.3
Function
Origin
A biotechnological fermentation ingredient that is created by feeding radish root to Leuconostoc kimchii. It allegedly contains organic acids and a mixture of peptides known as bacteriocins – which have antimicrobial activity.
Iron Oxides (CI 77491)
Est. %0.3
Function
Origin
A red colorant also known as red iron oxide. This is an EU-approved colorant used in a wide variety of products.
Mica
Est. %0.3
Function
Origin
A mineral powder made up of silicates with several functions (the main one being as a colorant). It has a shimmery appearance, making it highly desirable in certain cosmetic products. Mica also helps the product to apply more smoothly.
Titanium Dioxide (CI 77891)
Est. %0.3
Function
Origin
One of two the most commonly used mineral sunscreens. It can absorb UV light, including UVB – which causes burning, tanning, and even skin cancer. Also used as a colorant, titanium dioxide gives a product a bright white color.