Pixi Beauty Petra Vitamin-C Serum

Pixi Beauty Petra Vitamin-C Serum
5.2
/ 10
Moisturizing
10.0 Humectancy icon Humectancy
0.4 Occlusivity icon Occlusivity
5Anti-wrinkle icon/ 10
Anti-wrinkle
Rich
in Antioxidants

Review

Does Pixi Beauty Petra Vitamin-C Serum work?

Based on the ingredient list analysis by CreamScan AI, these are the key benefits you can expect from using Pixi Beauty Petra Vitamin-C Serum:

  • Strong humectant moisturizing. This lightweight, humectant-rich product, ideal for oily skin, has a moisturizing rating of 5.2 out of 10.
  • Considerable anti-wrinkle efficacy: Pixi Beauty Petra Vitamin-C Serum has an anti-wrinkle rating of 5.0 out of 10, indicating a moderate ability to reduce wrinkles.
  • Antioxidant protection.

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

According to CreamScan analysis, Pixi Beauty Petra Vitamin-C Serum is quite moisturizing, with a moisturizing rating of 5.2 out of 10.

Is it more humectant or occlusive? Significantly more humectant. It has a low occlusivity of 0.4 out of 10 and a maximum humectancy of 10 out of 10, primarily due to the high content of Ethoxydiglycol (est. ≈4.0%), Propanediol (est. ≈3.0%) and Glycerin (est. ≈2.0%).

This humectant-rich product, when used alone as a moisturizer, is ideal for oily skin, offering significant hydration in a lightweight, fast-absorbing formula with a minimal amount of occlusive ingredients. It’s also a great choice for people with normal skin who prefer lightweight moisturizers.

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.

Considerable anti-wrinkle efficacy

According to CreamScan analysis, Pixi Beauty Petra Vitamin-C Serum has a moderate anti-wrinkle rating of 5.0 out of 10.

It contains 2 active ingredients with proven anti-wrinkle efficacy:

  • Ascorbic Acid (est. ≈6.0%),
     or Vitamin C, a popular ingredient, yet with moderate anti-wrinkle efficacy, as confirmed by a single clinical study involving 20 participants (Humbert et al.). This study showed that a cream with a relatively high concentration of 5% ascorbic acid reduced the average wrinkle depth by 7% after 6 months of use, compared to a vehicle (the same formulation without ascorbic acid).
  • 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).
Among others, Pixi Beauty Petra Vitamin-C Serum also contains Caffeine, an ingredient often marketed as effective in reducing wrinkles. However, the studies supporting the anti-wrinkle claims of Caffeine provide insufficient evidence of its efficacy according to CreamScan Research Evaluation Standards. Therefore, this ingredient does not contribute to the anti-wrinkle rating.
 
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.

Rich in skin-protecting antioxidants

We estimate that Pixi Beauty Petra Vitamin-C Serum is rich (> 3%) in antioxidants, specifically Ascorbic Acid (est. ≈6.0%).

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.

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Ingredients

Est. % Ingredient Origin Functions
70
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
0.1
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
Est. %
Water
Function:
Origin:
Ascorbic Acid
Function:
Origin:
Ethoxydiglycol
Function:
Origin:
Propanediol
Function:
Origin:
Glycerin
Function:
Origin:
Citrus Grandis (Grapefruit) Peel Water
Function:
Origin:
Sodium Hydroxide
Function:
Origin:
Aloe Barbadensis Leaf Juice
Function:
Origin:
Sodium Hyaluronate
Function:
Origin:
Citrus Limon (Lemon) Peel Extract
Function:
Origin:
Citrus Nobilis (Mandarin Orange) Fruit Extract
Function:
Origin:
Ferulic Acid
Function:
Origin:
Tocopherol
Function:
Origin:
Caffeine
Function:
Origin:
Microcitrus Australis Fruit Extract
Function:
Origin:
Microcitrus Australasica Fruit Extract
Function:
Origin:
Beta-Carotene (CI 40800)
Function:
Origin:
Lecithin
Function:
Origin:
Citrus Glauca Fruit Extract
Function:
Origin:
Panthenol
Function:
Origin:
Daucus Carota Sativa (Carrot) Root Extract
Function:
Origin:
Citrus Aurantium Dulcis (Orange) Peel Extract
Function:
Origin:
Citrus Grandis (Grapefruit) Fruit Extract
Function:
Origin:
Citrus Junos Peel Extract
Function:
Origin:
Mentha Piperita (Peppermint) Extract
Function:
Origin:
Melaleuca Alternifolia (Tea Tree) Flower/Leaf/Stem Extract
Function:
Origin:
Retinol
Function:
Origin:
Xanthan Gum
Function:
Origin:
Leuconostoc/Radish Root Ferment Filtrate
Function:
Origin:
Punica Granatum Extract
Function:
Origin:
Phenoxyethanol
Function:
Origin:
Hydroxypropyl Cyclodextrin
Function:
Origin:
Polysorbate 20
Function:
Origin:
Phospholipids
Function:
Origin:
Glycine Soja (Soybean) Oil
Function:
Origin:
Caprylic/Capric Triglyceride
Function:
Origin:
Sodium Acrylates Copolymer
Function:
Origin:
Sodium Benzoate
Function:
Origin:
Potassium Sorbate
Function:
Origin:
Sodium Sorbate
Function:
Origin:
Citric Acid
Function:
Origin:
Ethylhexylglycerin
Function:
Origin:

Ratings

All humectants
13.0
4
3
2
1.5
1
0.3
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
0.9
0.3
0.3
0.3
Benchmark
20
Moisturizing rating
5.2
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 13.0 10
10.0
4
3
2
1.5
1
0.3
0.3
0.3
0.3
0.3
Occlusivity All occlusives 0.9 20
0.4
0.3
0.3
0.3
Moisturizing rating
5.2
Ingredient Est. % Benchmark Humectancy
4
3
2
1.5
1
0.3
0.3
0.3
0.3
0.3
All humectants 13.0 10
10
All humectants
13.0
4
3
2
1.5
1
0.3
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
0.3
0.3
0.3
All occlusives 0.9 20
0.4
All occlusives
0.9
0.3
0.3
0.3
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
2.5 /10 5 6 2.5
10 /10 0.4 0.1 2.5
n/a
- 0.3 -
Total
5
Ascorbic Acid
2.5
Ingredient anti-wrinkle power
2.5 /10
when present at, %
5
in this formula, est. %
6
Retinol
2.5
Ingredient anti-wrinkle power
10 /10
when present at, %
0.4
in this formula, est. %
0.1
Caffeine
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
5
Ingredient Est. % Benchmark
Rich in Antioxidants
6
1
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 10.3 3 Rich in antioxidants
All antioxidants
10.3
Ascorbic Acid
6
Aloe Barbadensis Leaf Juice
1
Sodium Hyaluronate
0.3
Citrus Limon (Lemon) Peel Extract
0.3
Ferulic Acid
0.3
Tocopherol
0.3
Caffeine
0.3
Microcitrus Australasica Fruit Extract
0.3
Beta-Carotene (CI 40800)
0.3
Daucus Carota Sativa (Carrot) Root Extract
0.3
Citrus Grandis (Grapefruit) Fruit Extract
0.3
Punica Granatum Extract
0.3
Glycine Soja (Soybean) Oil
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
1
0.3
All soothing 1.3 5 No
All soothing
1.3
1
0.3
Benchmark
5

Ingredients explained

Water
Est. %70
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.
Ascorbic Acid
Est. %6
Function
Origin
Ascorbic Acid

Also known as vitamin C, this multi-benefit ingredient has proven anti-wrinkle, antioxidant, and anti-pigmentation efficacy. It degrades easily when exposed to air and light, so it requires proper packaging to maintain its stability.

Ethoxydiglycol
Est. %4
Function
Origin
EthoxydiglycolA type of alcohol with humectant moisturizing properties. It also acts as a solvent, since it mixes well with a variety of other compounds, including water and even some oils.
Propanediol
Est. %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.
Glycerin
Est. %2
Function
Origin
Glycerin

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

Citrus Grandis (Grapefruit) Peel Water
Est. %1.5
Function
Origin
Citrus Grandis (Grapefruit) Peel Water
Sodium Hydroxide
Est. %1.3
Function
Origin
Sodium Hydroxide

An ingredient that is able to bring the pH of a product up, thereby making it less harsh on the skin.

Aloe Barbadensis Leaf Juice
Est. %1
Function
Origin
Aloe Barbadensis Leaf JuiceA gelatinous juice from Aloe vera leaves that acts as a powerful humectant, emollient, and antioxidant. It contains enzymes, amino acids, vitamins, and minerals that soothe irritated skin and have wound-healing and anti-inflammatory properties.
Sodium Hyaluronate
Est. %0.3
Function
Origin
Sodium Hyaluronate

A sodium salt of famous hyaluronic acid. A potent humectant that hydrates the skin, supports collagen function, and fills out small wrinkles. Sodium hyaluronate also offers soothing and antioxidant properties.

Citrus Limon (Lemon) Peel Extract
Est. %0.3
Function
Origin
Citrus Limon (Lemon) Peel Extract

Derived from lemon peels, this fresh and citrusy extract contains mostly fragrant limonene, but also antioxidant flavonoids and organic acids.

Citrus Nobilis (Mandarin Orange) Fruit Extract
Est. %0.3
Function
Origin
Citrus Nobilis (Mandarin Orange) Fruit Extract
Ferulic Acid
Est. %0.3
Function
Origin
Ferulic AcidA plant-based phenolic acid with powerful and scientifically proven antioxidant properties. It enhances the effects of vitamins C and E, as well as the UV protective effects of sunscreens.
Tocopherol
Est. %0.3
Function
Origin
Tocopherol

Simply another name for vitamin E. Tocopherol is a fantastic ingredient and especially beneficial for dry and inflamed skin. It has occlusive moisturizing, emollient, antioxidant, and photoprotective properties.

Caffeine
Est. %0.3
Function
Origin
CaffeineAn antioxidant compound that is obtained from coffee and tea leaves. It increases the microcirculation of blood in the skin and is claimed to be able to reduce the appearance of orange peel skin (although the research is lacking).
Microcitrus Australis Fruit Extract
Est. %0.3
Function
Origin
Microcitrus Australis Fruit Extract
Microcitrus Australasica Fruit Extract
Est. %0.3
Function
Origin
Microcitrus Australasica Fruit ExtractAn antioxidant and exfoliating extract from caviar lime, a citrus fruit that looks like caviar. The fruits are rich in citric acid (an AHA) and also contain antioxidant vitamin C, phenolic compounds, and a lime-scented essential oil.
Beta-Carotene (CI 40800)
Est. %0.3
Function
Origin
Beta-Carotene (CI 40800)An orange-red plant pigment with powerful antioxidant activity.
Lecithin
Est. %0.3
Function
Origin
LecithinA humectant, emollient, and emulsifier best suited for water-in-oil emulsions. Lecithin can come from sunflowers, soy, and eggs. The downside to lecithin is that it causes an extra burden on the formula’s preservative because it is nutritious.
Citrus Glauca Fruit Extract
Est. %0.3
Function
Origin
Citrus Glauca Fruit Extract
Panthenol
Est. %0.3
Function
Origin
PanthenolA popular soothing and moisturizing derivative of vitamin B5. Panthenol is particularly beneficial for dry, flaking, burned, or damaged skin. It is used to alleviate the symptoms of a rash, dermatitis, eczema, chapped lips, and sunburn.
Daucus Carota Sativa (Carrot) Root Extract
Est. %0.3
Function
Origin
Daucus Carota Sativa (Carrot) Root ExtractAn antioxidant extract derived from carrots. It is a rich source of the orange-colored beta-carotene (pro-vitamin A). Carrot root extract is often added to skincare products that are aimed at providing a better suntan.
Citrus Aurantium Dulcis (Orange) Peel Extract
Est. %0.3
Function
Origin
Citrus Aurantium Dulcis (Orange) Peel Extract

Citrus aurantium dulcis peel extract is the same extract as Citrus aurantium dulcis (orange) fruit extract. It has antioxidant properties and gives a skincare product a fresh orange scent. It also works as a thickener due to its pectin content. Read more about the extract here: Citrus Aurantium Dulcis (Orange) Fruit Extract.

Citrus Grandis (Grapefruit) Fruit Extract
Est. %0.3
Function
Origin
Citrus Grandis (Grapefruit) Fruit Extract

Citrus grandis fruit extract is the same extract as Citrus grandis (grapefruit) peel extract, which is actually an extract from pomelo peel. It has antioxidant properties and gives the skincare product a fresh, citrusy scent. Read more about it here: Citrus Grandis (Grapefruit) Peel Extract.

Citrus Junos Peel Extract
Est. %0.3
Function
Origin
Citrus Junos Peel Extract
Mentha Piperita (Peppermint) Extract
Est. %0.3
Function
Origin
Mentha Piperita (Peppermint) Extract
Melaleuca Alternifolia (Tea Tree) Flower/Leaf/Stem Extract
Est. %0.3
Function
Origin
Melaleuca Alternifolia (Tea Tree) Flower/Leaf/Stem Extract
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.

Xanthan Gum
Est. %0.3
Function
Origin
Xanthan GumA natural multi-functional ingredient that originates from fermented sugars. Xanthan gum acts as a viscosity-building agent to thicken skincare products. It is also an excellent stabilizer and works well to hold other ingredients together.
Leuconostoc/Radish Root Ferment Filtrate
Est. %0.3
Function
Origin
Leuconostoc/Radish Root Ferment FiltrateA 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.
Punica Granatum Extract
Est. %0.3
Function
Origin
Punica Granatum ExtractAn extract made from pomegranate fruit. The fleshy and juicy part of the fruit mainly contains antioxidant red pigments and polyphenols. The rinds contain large amounts of tannins, which are astringent and leave the skin feeling tightened and refreshed.
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.
Hydroxypropyl Cyclodextrin
Est. %0.3
Function
Origin
Hydroxypropyl CyclodextrinA white crystalline powder that can reduce odors coming from other ingredients in a product.
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.
Phospholipids
Est. %0.3
Function
Origin
PhospholipidsA large group of lipids that are an essential component of every single cell membrane in the body. They have excellent emollient properties. Phospholipids are also utilized in the manufacturing of ‘fancy’ formulations such as liposomes.
Glycine Soja (Soybean) Oil
Est. %0.3
Function
Origin
Glycine Soja (Soybean) OilAn occlusive moisturizing oil expressed from soybeans. It does not leave an oily feeling on the skin due to its low content of saturated fatty acids. Glycine soja oil contains emollient fatty acids and a significant amount of antioxidants.
Caprylic/Capric Triglyceride
Est. %0.3
Function
Origin
Caprylic/Capric TriglycerideA natural occlusive moisturizing and emollient ingredient, it is a blend of glycerin and two fatty acids, caprylic and capric acid. It creates an oil-based protective layer on the skin, thereby preventing water loss.
Sodium Acrylates Copolymer
Est. %0.3
Function
Origin
Sodium Acrylates CopolymerA synthetic polymer that can come in various forms and is often used to create light gel-like textures. Some versions can also create a light film on the skin.
Sodium Benzoate
Est. %0.3
Function
Origin
Sodium BenzoateA preservative that usually works in combination with other preservatives. It has to be at low pH (<5.5) to be effective.
Potassium Sorbate
Est. %0.3
Function
Origin
Potassium SorbateA preservative widely used in food and personal care products, available from natural sources or synthetically produced. Potassium sorbate works by inhibiting the growth of yeasts, molds, and some bacteria.
Sodium Sorbate
Est. %0.3
Function
Origin
Sodium Sorbate
Citric Acid
Est. %0.3
Function
Origin
Citric AcidA gently exfoliating AHA that helps to remove the top layer of dead skin cells. In comparison to other AHAs, citric acid has been shown to be one of the least effective. It is also very commonly used as a stabilizing and pH-controlling agent.
Ethylhexylglycerin
Est. %0.3
Function
Origin
EthylhexylglycerinA 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.