Skin Perfecting Prep Sun Serum
YUNJAC
A sunscreen serum designed to prep skin before makeup while providing sun protection. Intended for daily use as a lightweight sun care step.
Sunscreen Details
Under Makeup
Yes
UV filter type (chemical vs physical) is not verified for this product. If you need to avoid specific filters for medical reasons, check the ingredient list at the retailer before purchasing.
More Korean Sunscreens
Frequently Asked Questions
What are the key ingredients in Skin Perfecting Prep Sun Serum?
Skin Perfecting Prep Sun Serum is a sunscreen by YUNJAC. Subscribe to Seoul Sister for full ingredient analysis across our database of 5,900+ K-beauty products.
Is Skin Perfecting Prep Sun Serum good for sensitive skin?
Skin Perfecting Prep Sun Serum is a Korean sunscreen by YUNJAC. Sensitive skin compatibility depends on individual triggers and allergies. Seoul Sister's AI advisor Yuri analyzes all N/A ingredients against your specific skin type, concerns, and known allergens to provide a personalized compatibility score. Common irritant ingredients like fragrance, alcohol denat, and essential oils are flagged automatically.
Is Skin Perfecting Prep Sun Serum good for oily skin?
For oily skin, the key factors in evaluating Skin Perfecting Prep Sun Serum are comedogenic ingredient ratings, oil content, and finish type. Seoul Sister's database cross-references each ingredient's comedogenic rating (0-5 scale) against your skin type to identify potential pore-clogging risks. Subscribe for a personalized oily skin compatibility analysis.
Where to buy Skin Perfecting Prep Sun Serum?
Skin Perfecting Prep Sun Serum by YUNJAC is sold through authorized retailers and the brand itself. Buy from an authorized retailer or the brand's own site rather than an open marketplace. Olive Young Global ships to most countries but no longer ships to the US. Seoul Sister tracks counterfeit indicators to help you buy genuine Korean skincare. We are an advice platform and never sell products ourselves.
Related Articles
Beauty of Joseon Aqua Fresh Sunscreen: Full Review
Beauty of Joseon's Aqua Fresh sunscreen has become a staple recommendation across K-beauty communities. But does it actually deliver on its promises, and is it right for your skin type? We break down the full ingredient list, UV protection, and who should (and shouldn't) reach for this one.
Why Does Sunscreen Pill? How to Stop It for Good
You've layered your toner, serum, and moisturizer perfectly, and then your sunscreen starts rolling off in little balls. Sunscreen pilling is one of the most common frustrations in K-beauty routines, but it's almost always fixable once you understand what's actually causing it.
Best Japanese & Korean Sunscreens You Can Buy in the US (2026) Without Getting Ripped Off
Asian sunscreens feel like a completely different product category compared to Western ones, but buying them in the US often means paying 2-3x the original price. Here's how to find the best Japanese and Korean sunscreens without getting ripped off or ending up with a counterfeit.