Works for
Anti-agingAscorbyl tetraisopalmitateMay help
“Our antioxidant face serum helps defend against environmental skin aging and supports the body’s collagen synthesis to help firm skin.”
This product contains ascorbyl tetraisopalmitate. This ingredient might be able to help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness, but there is not enough evidence that it actually works.
Evens skin toneAscorbyl tetraisopalmitateMay help
“Our powerful brightening face serum is infused with a potent, all-natural 20% Vitamin C stabilized for maximum efficacy and tolerability.”
The following ingredient (ingredients) in this product might be helpful, but there is no evidence to confirm that it actually works: ascorbyl tetraisopalmitate.
MoisturizingPrunus armeniaca kernel oil, Helianthus annuus seed oil + 1 moreWorks
“Apricot Kernel Oil, rich in phytosterols, helps moisturize and comfort skin.”
This product can help soften the skin and reduce its moisture loss with emollients and occlusives: helianthus annuus seed oil, prunus armeniaca kernel oil.
Keep in mind that this product does not contain effective ingredients to attract water to the upper layer of the skin. This is why an additional product with humectants like glycerin or hyaluronic acid can be helpful (apply it before this product for the best results).
ExfoliationNo ingredient credited for this claimNot delivered
This product does not contain effective exfoliating ingredients. It might be able to deliver physical exfoliation, that is scrub off some of the dead cells on the surface of the skin. We do not recommend physical exfoliation, because it is not uniform (some bits of skin can get exfoliated too much while others not at all). It can also traumatize the skin and aggrevate acne and other skin conditions.
Anti-blemishNo ingredient credited for this claimNot delivered
Effective ingredients missing or their concentration is too low.
Anti-oxidationSide benefit · Ascorbyl tetraisopalmitate, Prunus armeniaca kernel oil + 2 moreWorks well
This product contains antioxidants (ascorbyl tetraisopalmitate) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).
Can it cause trouble?
Irritancy11 strong irritants: Limonene, Citrus aurantium dulcis oil + 9 more — patch-test recommendedHigh risk
ComedogenicClean of flagged comedogenic ingredientsNone flagged
User reviews
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Ingredients
Filter by role to see what each ingredient is doing.
Brassica napus extract~23–34%
- Irritation risk
- Low
Ascorbyl tetraisopalmitate~5.4–8%
- Irritation risk
- Medium
A vitamin C derivative. Studies show that is might be effective in reducing hyperpigmentation, but there are no studies confirming that it is effectively converted into the bioavailable form of Vitamin C in skin. It is not clear how this derivative compares in effectiveness to the topical application of bioavailable form of vitamin C (L-ascorbic acid)
More about Ascorbyl tetraisopalmitatePrunus armeniaca kernel oil~4.6–7%
- Irritation risk
- Medium
An emollient that helps soften the skin
More about Prunus armeniaca kernel oilLimonene~3.6–5.4%
- Irritation risk
- High
A common frangrance that can easily irritate skin, especially if exposed to air, light or heat
More about LimoneneCitrus aurantium dulcis oil~2.7–4%
- Irritation risk
- High
Used as a fragrance. It can be irritating and cause photosensitivity
More about Citrus aurantium dulcis oilHelianthus annuus seed oil~2.3–3.4%
- Irritation risk
- Low
A great emollient due to its high linoleic acid content. One of the most effective plant oils in helping skin hydration and repairing skin barrier function
More about Helianthus annuus seed oilCurcuma longa callus extract~1.5–2.2%
- Irritation risk
- Low
Punica granatum leaf cell extract~1.2–1.8%
- Irritation risk
- Low
Lavandula angustifolia oil~1–1.5%
- Irritation risk
- High
An essential oil. Potential allergen and can be irritating. It has some anti-bacterial properties
More about Lavandula angustifolia oilPelargonium graveolens leaf oil~0.95–1.4%
- Irritation risk
- High
An essential oil used as a fragrance. Can be irritating
More about Pelargonium graveolens leaf oilRosmarinus officinalis leaf oil~0.55–1.35%
- Irritation risk
- High
A plant oil with high content of volatile compounds that can irritate the skin. Can be used as a fragrance. Has anti-bacterial properties and might help neutralize free radicals on the surface of the skin
More about Rosmarinus officinalis leaf oilCupressus sempervirens oil~0.5–1.15%
- Irritation risk
- Low
Thymus vulgaris flower/leaf oil~0.45–1.05%
- Irritation risk
- High
Parfum~0.35–0.85%
- Irritation risk
- High
An aromatic blend of unspecified and possibly irritating ingredients
More about ParfumTocopheryl acetate~0.35–0.8%
- Irritation risk
- Medium
A more stable but less bio-available form of vitamin E compared to Tocopherol. Might help moisturize and protect the skin from free radicals, but mostly used in low concentrations to stabilize other ingredients.
More about Tocopheryl acetateCitral~0.15–0.65%
Linalool~0.15–0.55%
Geraniol~0.1–0.4%
Citronellol~0.1–0.4%
Ingredient list view
Brassica napus extract, Ascorbyl tetraisopalmitate, Prunus armeniaca kernel oil, Limonene, Citrus aurantium dulcis oil, Helianthus annuus seed oil, Curcuma longa callus extract, Punica granatum leaf cell extract, Lavandula angustifolia oil, Pelargonium graveolens leaf oil, Rosmarinus officinalis leaf oil, Cupressus sempervirens oil, Thymus vulgaris flower/leaf oil, Parfum, Tocopheryl acetate, Citral, Linalool, Geraniol, Citronellol
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Worth comparing, line by line.
Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.
| Yon-Ka ParisSerum C20YOUR PRODUCT | KORRESApothecary Wild Rose Brightening Absolute Oil | immunoAdvanced Essence Oil WH | Pai SkincareStabilized Vitamin C 20% Brightening Booster | |
|---|---|---|---|---|
| Match | — | 63% | 59% | 58% |
| Price | — | — | $96.60 | $26.80 |
| Shared key ingredients | — | 3 of 3 | 2 of 3 | 2 of 3 |
| Key difference | — | Bisabolol | Alteromonas Ferment Extract | Prickly Pear Seed Oil |
| Irritancy | High | High | Medium | Low |
| Drying alcohol | — | Contains drying alcohol | — | — |
| View product | Shop | Shop | Shop |
More alternatives: Essano Advanced Brightening Vitamin C SerumFaceGym Youth Reformer Firming Vitamin C and Nootropic Oil-in-Serum
Product summary
"Yon-Ka Paris - Serum C20" could be helpful for: Evens skin tone, Anti-aging and Moisturizing, but its actives are not the most effective or are not well-studied.
Sources cited in this review
Every concentration estimate and effectiveness label is anchored to one of these 18 studies and safety reviews.
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