Paula's Choice Smoothing Primer Serum SPF 30

Paula's Choice Smoothing Primer Serum SPF 30
2.1
/ 10
Moisturizing
1.2 Humectancy icon Humectancy
3.0 Occlusivity icon Occlusivity
30
SPF icon
SPF

Review

Does Paula's Choice Smoothing Primer Serum SPF 30 work?

Based on the ingredient list analysis by CreamScan AI, these are the key benefits you can expect from using Paula's Choice Smoothing Primer Serum SPF 30:

  • Light moisturizing. It has a moisturizing rating of 2.1 out of 10.
  • Moderate to high sun protection for daily outdoor activities

Slight Moisturizing When Used Alone

According to CreamScan analysis, Paula's Choice Smoothing Primer Serum SPF 30 is lightly moisturizing, with a moisturizing rating of 2.1 out of 10.

Is it more humectant or occlusive? Rather occlusive. It has a low humectancy of 1.2 out of 10 and a moderate occlusivity of 3.0 out of 10, entirely due to the high content of Dimethicone (est. ≈5.9%).

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.

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

Questionable anti-wrinkle efficacy

According to CreamScan analysis, Paula's Choice Smoothing Primer Serum SPF 30 has a zero anti-wrinkle rating.

It contains some ingredients often marketed as effective in reducing wrinkles, specifically Coffea Arabica (Coffee) Seed Extract, Retinyl Palmitate, and Camellia Sinensis Leaf Extract. 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 generate 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.

Moderate to high sun protection for daily outdoor activities

With an SPF of 30, Paula's Choice Smoothing Primer Serum SPF 30 provides moderate to high sun protection, making it suitable for daily use during moderate sun exposure, such as commuting or light outdoor activities.

This level of SPF offers excellent defense against UVB rays, blocking up to 97% of harmful radiation. When labeled as broad-spectrum, these products also protect against UVA rays, which are responsible for skin aging and hyperpigmentation.

For optimal protection, choose products labeled broad-spectrum to ensure defense against both UVA rays, which contribute to skin aging and pigmentation, and UVB rays that cause sunburn.

This level of SPF works well for skin types mildly prone to sunburn. It is particularly suitable for low-to-moderate UV index environments and non-tropical climates. However, it is not recommended for prolonged outdoor exposure or intense UV conditions. Reapplication every two hours is essential to maintain effectiveness.

Ingredients

Est. % Ingredient Origin Functions
65
6
5.9
5.8
4
4
2
1.5
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. %
Isododecane
Function:
Origin:
Octinoxate
Function:
Origin:
Dimethicone
Function:
Origin:
Butyloctyl Salicylate
Function:
Origin:
Homosalate
Function:
Origin:
Octisalate
Function:
Origin:
Avobenzone
Function:
Origin:
Polysilicone-11
Function:
Origin:
Bisabolol
Function:
Origin:
Coffea Arabica (Coffee) Seed Extract
Function:
Origin:
Glycyrrhiza Glabra (Licorice) Root Extract
Function:
Origin:
Chamomilla Recutita (Matricaria) Flower Extract
Function:
Origin:
Retinyl Palmitate
Function:
Origin:
Aloe Barbadensis Leaf Extract
Function:
Origin:
Calluna Vulgaris Flower Extract
Function:
Origin:
Camellia Sinensis Leaf Extract
Function:
Origin:
Chlorella Vulgaris Extract
Function:
Origin:
Caprylic Acid
Function:
Origin:
Physalis Angulata Extract
Function:
Origin:
Pyrus Malus (Apple) Fruit Extract
Function:
Origin:
Diethylhexyl Syringylidenemalonate
Function:
Origin:

Ratings

All humectants
1.2
0.3
0.3
0.3
0.3
Benchmark
10
All occlusives
5.9
5.9
Benchmark
20
Moisturizing rating
2.1
Ingredient Est. % Benchmark Raiting
Humectancy All humectants 1.2 10
1.2
0.3
0.3
0.3
0.3
Occlusivity All occlusives 5.9 20
3.0
5.9
Moisturizing rating
2.1
Ingredient Est. % Benchmark Humectancy
0.3
0.3
0.3
0.3
All humectants 1.2 10
1.2
All humectants
1.2
0.3
0.3
0.3
0.3
Benchmark
10
Ingredient Est. % Benchmark Occlusivity
5.9
All occlusives 5.9 20
3.0
All occlusives
5.9
5.9
Benchmark
20
Ingredient
Ingredient anti-wrinkle power
when present at, %
in this formula est. %
Rating
n/a
- 0.3 -
n/a
- 0.3 -
n/a
- 0.3 -
Total
0
Coffea Arabica (Coffee) Seed Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Retinyl Palmitate
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Camellia Sinensis Leaf Extract
-
Ingredient anti-wrinkle power
n/a
when present at, %
-
in this formula, est. %
0.3
Anti-wrinkle rating
0
Ingredient Est. % Benchmark
Rich in Antioxidants
0.3
0.3
0.3
0.3
0.3
0.3
0.3
0.3
All antioxidants 2.4 3 No
All antioxidants
2.4
Coffea Arabica (Coffee) Seed Extract
0.3
Glycyrrhiza Glabra (Licorice) Root Extract
0.3
Chamomilla Recutita (Matricaria) Flower Extract
0.3
Aloe Barbadensis Leaf Extract
0.3
Camellia Sinensis Leaf Extract
0.3
Chlorella Vulgaris Extract
0.3
Pyrus Malus (Apple) Fruit Extract
0.3
Diethylhexyl Syringylidenemalonate
0.3
Benchmark
3
Ingredient Est. % Benchmark
Rich in Soothing
0.3
0.3
0.3
0.3
0.3
All soothing 1.5 5 No
All soothing
1.5
0.3
0.3
0.3
0.3
0.3
Benchmark
5

Ingredients explained

Isododecane
Est. %65
Function
Origin
IsododecaneAn emollient derived from petroleum with high spreadability. It is often used as a replacement for oils and silicones because it leaves no residue behind on the skin. When a product is labeled as “oil-free” it may contain isododecane instead of heavier oils.
Octinoxate
Est. %6
Function
Origin
OctinoxateA chemical sunscreen also known as ethylhexyl methoxycinnamate. It protects against UVB, which causes the skin to burn and tan and can lead to certain types of skin cancers. For broad-spectrum protection claims, octinoxate should be paired with a UVA sunscreen.
Dimethicone
Est. %5.9
Function
Origin
DimethiconeThe most common silicone in skincare. It forms a silky, smooth film on the skin’s surface and can help to prevent water loss. It also aids in wound healing and can treat and soften scars. Dimethicone is considered to be very safe for use.
Butyloctyl Salicylate
Est. %5.8
Function
Origin
Butyloctyl SalicylateA synthetic emollient and solvent. It is primarily used as a carrier oil to disperse minerals in, including pigments and sunscreen minerals. It can also absorb UV light, thus boosting the SPF of sunscreen products.
Homosalate
Est. %4
Function
Origin
HomosalateA synthetic chemical UV filter that protects against harmful UVB radiation.
Octisalate
Est. %4
Function
Origin
OctisalateA UVB sunscreen also known as ethylhexyl salicylate. It is normally paired with UVA sunscreens to provide broad-spectrum protection. Octisalate also protects other ingredients, like colorants and antioxidants, from deterioration due to exposure to UV light.
Avobenzone
Est. %2
Function
Origin
AvobenzoneA popular sunscreen that protects against UVA rays, which cause premature aging and skin cancer. Avobenzone degrades after about 30 minutes of sun exposure and becomes ineffective. It is therefore often paired with UV-filter stabilizers such as octocrylene.
Polysilicone-11
Est. %1.5
Function
Origin
Polysilicone-11A synthetic rubber-like substance of the silicone family that has no color or distinct scent. These are large molecules that cannot penetrate the skin but instead create a thin silky film on the skin's surface.
Bisabolol
Est. %0.3
Function
Origin
Bisabolol

An anti-inflammatory compound found naturally in German chamomile essential oil. It has a pleasant, sweet, and floral scent. Bisabolol also has soothing and anti-inflammatory properties but can cause an allergic reaction in more sensitive individuals.

Coffea Arabica (Coffee) Seed Extract
Est. %0.3
Function
Origin
Coffea Arabica (Coffee) Seed ExtractAn antioxidant and emollient extract derived from coffee beans. It has been proven to improve collagen and elastin production in the skin. A small clinical study tested the anti-aging effects of coffee berry extract, and the results were very promising.
Glycyrrhiza Glabra (Licorice) Root Extract
Est. %0.3
Function
Origin
Glycyrrhiza Glabra (Licorice) Root ExtractAn extract from the licorice root. It contains a well-researched anti-inflammatory compound called glycyrrhizin that can reduce inflammation. Licorice root extract is also used for its powerful antioxidant effects and ability to treat pigmentation.
Chamomilla Recutita (Matricaria) Flower Extract
Est. %0.3
Function
Origin
Chamomilla Recutita (Matricaria) Flower ExtractDerived from German chamomile flowers, this extract is especially known for its anti-inflammatory and soothing benefits. It contains two soothing compounds called chamazulene and bisabolol, as well as antioxidant flavonoids.
Retinyl Palmitate
Est. %0.3
Function
Origin
Retinyl PalmitateAn esterified form of retinol – it combines retinol and palmitic acid into one molecule. Retinyl palmitate is less irritating than retinol but also much less effective in its anti-aging and acne-reducing effects.
Aloe Barbadensis Leaf Extract
Est. %0.3
Function
Origin
Aloe Barbadensis Leaf ExtractDerived from Aloe vera leaves, this moisturizing humectant, soothing, and antioxidant extract is commonly used in products targeting eczema, sunburn, or dermatitis. It soothes the skin and reduces the signs of inflammation and sensitivity.
Calluna Vulgaris Flower Extract
Est. %0.3
Function
Origin
Calluna Vulgaris Flower Extract
Camellia Sinensis Leaf Extract
Est. %0.3
Function
Origin
Camellia Sinensis Leaf Extract

An antioxidant green tea extract. In the deeper layers, it slows down the destruction of collagen, elastin, and hyaluronic acid – thus delaying the signs of aging. It also acts as an anti-acne, soothing, moisturizing, and emollient ingredient.

Chlorella Vulgaris Extract
Est. %0.3
Function
Origin
Chlorella Vulgaris ExtractA dried mass of tiny, single-cell green algae. It is widely used as a food source or dietary supplement since it is rich in proteins, amino acids, minerals, and vitamins. This dark green extract is used as an antioxidant agent in skincare.
Caprylic Acid
Est. %0.3
Function
Origin
Caprylic Acid
Physalis Angulata Extract
Est. %0.3
Function
Origin
Physalis Angulata Extract
Pyrus Malus (Apple) Fruit Extract
Est. %0.3
Function
Origin
Pyrus Malus (Apple) Fruit ExtractAn extract derived from apple fruit that has humectant moisturizing and antioxidant properties, as well as gentle anti-pigment effects. It contains humectant sugars, anti-pigment organic acids, and flavonoids.
Diethylhexyl Syringylidenemalonate
Est. %0.3
Function
Origin
Diethylhexyl Syringylidenemalonate