K-SECRET SEOUL 1988 Retinal Serum
- 30 ml serum
- Vitamin C listed as the key ingredient
- All, combination, dry and sensitive skin listed
- Improves elasticity and radiance
- Unscented
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A serum named for retinal that lists vitamin C as its key ingredient and sensitive skin among its concerns. The listing contradicts itself on the active, so check the package.
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ASIN: B0CP3C7TTJModel: SEOUL1988 Retinal SerumCategory: Skin Care Serums
Overview
Applying a few drops of this K-Secret serum before moisturizer is the step it is built for. The name points to retinal, the spec table to vitamin C, and the listing ties it to elasticity, radiance and sensitive skin.
A gentle retinal serum for sensitive skin would be a useful find, and the unscented formula fits that aim. The listing mixes up its actives and gives no strength or schedule, so confidence in the formula is lower than usual.
Who it's for
Skin that wants an anti-aging serum with a sensitive-skin angle is the situation here. Retinoid beginners and anyone who must confirm the formula before use should read the package or choose a serum with clear ingredient detail.
Pros and cons
- Listed for sensitive skin
- Elasticity and radiance aim
- Several skin types listed
- Key ingredient conflicts with the name
- Strength not given
- No usage directions
Performance notes
Retinal acts faster than retinol on cell turnover but can irritate, while vitamin C is an antioxidant that works on tone. Because the listing names both, the real effect and the risk of irritation depend on a formula it does not describe.
Specifications
| Brand | K-Secret |
|---|---|
| Model | SEOUL1988 Retinal Serum |
| Dimensions & fit | |
| Size | 30 ml |
| Other details | |
| Skin Type | All, Combination, Dry, Sensitive |
| Benefits | Improve Skin Elasticity, Radiant Skin |
| Item Form | Serum |
| Scent | Unscented |
| Key Ingredients | Vitamin C |
| Addresses | Sensitive skin |
Closest rivals on specs
Frequently asked questions
Can I use K-Secret Retinal Serum with vitamin C products?
The listing says nothing about layering. It lists vitamin C as its own key ingredient, so adding another may be redundant.
Is K-Secret Retinal Serum a retinol?
The name says retinal but the spec table lists vitamin C as the key ingredient. Check the package to confirm.
Is it safe for sensitive skin?
Sensitive skin is on the listed skin types, but it names no retinoid strength, so start slowly.