Hayun SPF 50 PDRN Moisturizing Sun Serum
Hayun SPF 50 PDRN Moisturizing Sun Serum
Moisturizing Sun Serum with PDRN & Hyaluronic Acid — SPF 50
Prevents Premature Aging
Brightens & Evens Skin Tone
Deeply Hydrates All Day
Safe for Sensitive Skin
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"I've tried dozens of sunscreens over the years, but this is the first one that actually feels like skincare. It's lightweight, deeply hydrating, and leaves absolutely no white cast."
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"This has completely replaced my moisturizer and sunscreen in the morning. My skin stays hydrated all day, and it sits beautifully under makeup."
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"I usually skip sunscreen because they feel greasy, but this one absorbs like a serum. My skin feels smoother, looks healthier, and has a natural glow."
How it Works
How it Works
Hayun combines advanced Korean skincare ingredients with broad-spectrum SPF 50+ PA++++ protection in one lightweight daily serum.
After cleansing, apply generously as the final step of your morning skincare routine before sun exposure. The silky serum texture absorbs quickly, leaving your skin hydrated, protected, and glowing without a white cast. Reapply every two hours when outdoors for continuous protection.
What's Included?
What's Included?
Each order includes:
- 1 × Hayun SPF 50 PDRN Moisturizing Sun Serum (50ml / 1.69 fl oz)
- SPF 50+ PA++++ Broad-Spectrum Protection
- PDRN, Birch Sap & Hyaluronic Acid Formula
- Suitable for all skin types
- Everyday morning skincare essential
Shipping & Return Policy
Shipping & Return Policy
We offer free tracked shipping on all orders.
Orders are processed within 1–2 business days and typically arrive within 5–10 business days, depending on your location.
If you're not completely satisfied, you may return your order within 30 days of delivery for a refund. Products must be returned in their original condition. If your order arrives damaged or incorrect, please contact our support team and we'll make it right.
The single most proven anti-aging step — finally one you’ll love wearing
Up to 90% of visible aging is sun, not birthdays.
Fine lines, dark spots, sagging — dermatologists agree the biggest driver is cumulative UVA exposure, which passes through clouds and windows year-round. No serum can out-repair daily unprotected sun.
That’s why PA++++ matters: it’s the highest UVA-defense rating, the one that protects collagen — not just the rating that prevents sunburn. Worn daily through your 20s and 30s it prevents damage; in your 40s and 50s it stops existing damage from deepening.
SPF 50+ against burning. PA++++ against aging.
A shield that works on the damage already done.
Most sunscreens only defend. Hayun’s formula pairs its UV shield with skincare-grade actives: niacinamide to fade dark spots and even tone, adenosine to support firmness and soften fine lines.
A base of birch sap and dual-weight hyaluronic acid keeps skin plump and comfortable all day — so it moisturizes like your favorite cream, while doing the real anti-aging work on top.
Protection today, better skin over time.
How to wear it
Last step, every morning
After your routine, before makeup. Rain, cloud, or shine — UVA doesn’t take days off.
Be generous
Two finger-lengths for face and neck — the serum texture makes a full, protective dose easy.
Reapply outdoors
Every two hours in direct sun. It layers over makeup without pilling.
Loved by Over 20,000 Women
“I've always hated sunscreen because it felt heavy and left a white cast. This feels more like a lightweight serum than SPF, absorbs in seconds, and gives my skin the healthiest glow. I actually look forward to wearing it every morning.”
“For the first time in years, I'm actually consistent with wearing SPF every single day. It's lightweight, layers beautifully under makeup, and never pills. My skin stays hydrated without feeling greasy.”
“I'm in my late 40s and finally realized protecting my skin is just as important as treating it. This has become a non-negotiable part of my routine. My skin feels smoother, looks healthier, and I love knowing I'm helping prevent future sun damage.”
Not your average SPF
“The best anti-aging product is the sunscreen you’ll actually wear. So I made one worth wearing.”
After a decade formulating for other beauty brands, I kept hearing the same confession from friends: “I know I should wear SPF every day — I just hate how it feels.” So I spent two years chasing a sunscreen that feels like a serum you’d buy for its own sake. Hayun, from the Korean 하윤 — warmth and kindness — is that answer: the anti-aging step you’ll never have to force yourself to take.
— Minji Yoon, founder of Hayun
Questions, answered
Will it leave a white cast on deeper skin tones?
I already use a retinol / vitamin C. Do I need this?
Can I skip moisturizer?
How does the buy-one-get-one work?
The 30-day sunshine guarantee
Wear it for a month. If it isn’t the best-feeling SPF you’ve owned, we’ll refund you in full — no return shipping, no questions.