PDRN Hair Growth Serum
PDRN Hair Growth Serum
Reduce Hair Shedding
Supports Thicker Hair
PDRN + Caffeine Formula
No Lifetime Dependency
Zero Grease, No Rewash
LOW STOCK - SELLING FAST
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- 60-Day Guarantee
- Fast Shipping
PDRN Hair Growth Serum
This constantly sells out in Korea so I had to try it. A month in, my strands feel stronger and less brittle at the roots!
Does it actually work?
Does it actually work?
Our PDRN Scalp Serum pairs vegan PDRN with caffeine, two ingredients popular in Korean scalp care for supporting a healthy scalp environment. Thinning hair often starts with a stressed, congested scalp, so that’s where we focus.
Micro-spicules gently exfoliate buildup to help the formula absorb, while the cooling brush applicator massages it in, so you feel it working from the first use. With consistent use, it helps hair look thicker, fuller and stronger at the root, with no grease, no rewashing and no lifetime commitment.
Frequently Asked Questions
Frequently Asked Questions
When can I expect results? Most people feel the cooling, refreshed scalp from the very first use. Within 2–4 weeks, many notice less itching, flaking and breakage. Baby hairs and fuller-looking roots typically start showing around months 2–3, with the most visible difference after 4+ months of daily use.
Will it make my hair greasy? No. The formula is lightweight and absorbs in seconds, with no sticky residue or oily roots. You can apply it to clean, dry or towel-dried hair and go about your day, with no need to rewash.
How do I use it? Turn the dial to release the serum, then brush it directly onto your scalp along your part, hairline, temples and crown. Gently massage it in with the comb tips for a few seconds. Use once a day on clean, dry or damp hair.
How long does a bottle last? One bottle lasts about 30 days with daily use. A little goes a long way: around 3–5 clicks covers your main thinning areas.
Ingredients
Ingredients
90-Day Guarantee
90-Day Guarantee
If you don’t see fuller, healthier-looking hair within 90 days, we’ll refund your purchase in full. No hoops, no hassle.
How It Works:
Step 1: Make It a Daily Habit
Brush the serum onto clean, dry or towel-dried scalp once a day, focusing on your part, temples and crown. It takes about 10 seconds, leaves zero grease, and you don’t need to rewash.
Step 2: Give It Time
Commit to at least 30 days of daily use. Most people feel the cooling, refreshed scalp from the very first application, and notice stronger, fuller-looking hair over 2–3 months of consistent use.
Step 3: Not Happy? Get Your Money Back
If you’ve used it consistently for at least 30 days and you’re not happy with how your hair looks, just email us at info@seyori.com within 90 days of purchase. We’ll process your refund. No forms, no photos, no questions.
Optional: Track Your Progress
Take a photo of your part on day one, in the same spot and light, with dry hair. Then take another every 2 weeks. Hair changes slowly, so it’s easy to miss, but you might be surprised when you look back. Photos are never required for a refund.
Shipping & Returns
Shipping & Returns
SHIPPING TIME varies by location. These are our estimates:
United States: 6-12 Business Days
United Kingdom & Europe: 6-12 Business Days
Canada, Australia, New Zealand: 7-14 Business Days
* Please allow a 1-3 day processing time
TRACKING INFORMATION
You will receive an email with tracking details once your order has been dispatched.
If you have any questions please contact us, we will do our best to help you out.
The Results Speak For Themselves
Trusted By Over 55,000 Happy Customers
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My Stylist Noticed!
As a GLP-1 user whose hair has suffered, I turned to Korean scalp serums. The comb-through packaging is genius, it makes my scalp feel wonderfully clean, and best of all, my hair is back to normal. Even my hair stylist noticed and asked what I’m doing! I’m now coloring more often to keep up with my roots.
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Finally, Less Shedding
My hair took a serious hit after I got sick with COVID. Watching it thin out and shed like crazy was so frustrating. I didn’t want to get my hopes up again, but I've been using this for two months and my hair loss has gotten smaller. Less shedding in the brush, less hair in the shower drain. It gives me so much hope.
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Volume at My Roots Again
I used to struggle so much with fine, thinning hair and zero volume at the roots. It was honestly so stressful. Since I started using this, everything changed. My hair fall has stopped, and my roots have this amazing, healthy-looking bounce now. I’m honestly blown away by how healthy my hair looks!
Thicker Hair Starts At The Scalp
92%
Noticed less shedding within the first month.
88%
Saw visible baby hairs with consistent use.
94%
Said they felt more comfortable after seeing regrowth.
Based on an independent consumer perception study of 200 people after 60 days using the Korean PDRN Serum. Results may vary.
What To Expect With Daily Use
Powered by Salmon PDRN + Caffeine
Calmer Scalp & Stronger-Feeling Roots
You'll feel the cooling refresh from the very first use. Within the first few weeks, many notice less itching, flaking and scalp heat, and fewer broken strands in their brush and shower drain. A calm, balanced scalp is the foundation for healthy-looking hair.
Baby Hairs & Visible Improvement
This is when many start spotting fine, short baby hairs along their hairline and part. Hair begins to look and feel thicker at the root, with more natural lift and less need to hide thin spots.
Fuller-Looking Hair You Don't Have to Hide
With consistent use, thin areas look fuller, your part looks narrower, and those baby hairs keep growing in. Fewer styling tricks, less checking the mirror, and no lifetime commitment to keep your results.
Three Science-Backed Ingredients
Every serum is built around a short list of ingredients chosen for one job: calming hormonal shedding and waking up tired follicles.
PDRN
A salmon-derived DNA extract, widely used across Korean skincare for its role in supporting tissue repair.
Caffeine
Long used in scalp care to keep circulation moving and the follicle environment active.
Centella Asiatica
Soothes the irritation that holds growth back and pushes hair into shedding sooner.
Why Women ChooseSeyori's PDRN Serum
Have Questions? We Have Answers.
Most people feel the cooling, refreshed scalp from the very first use. Within 2–4 weeks, many notice less itching, flaking and breakage. Baby hairs and fuller-looking roots typically start showing around months 2–3, with the most visible difference after 4+ months of daily use. Hair changes slowly, and individual results may vary.
No. The formula is lightweight and absorbs in seconds, with no sticky residue or oily roots. You can apply it to clean, dry or towel-dried hair and go about your day, with no need to rewash. Many customers apply it at night and wake up with hair that looks freshly washed.
No. It's not a medication, so there's no lifetime dependency and no shedding phase when you start. Think of it like skincare for your scalp: consistent daily use gives the best results, and most customers keep it in their routine simply because it feels so good. You're always in control.
Yes. It works alongside your shampoo, conditioner, styling products and heat tools. Apply it to your scalp first, let it absorb for a minute, then style as usual. If you're using minoxidil or a prescription treatment, check with your doctor first, and avoid layering other strong scalp actives on the same day.
Yes. It's designed for straight, wavy, curly and coily hair, including color-treated and chemically treated hair. The brush tip parts hair as it applies, so the serum goes straight to your scalp. If you wear natural hair pressed straight, note that applying any liquid may cause some reversion at the roots.
The formula is gentle enough for daily use. As with any new scalp product, we recommend a patch test behind your ear first. Avoid applying it to broken or inflamed skin. If you have a scalp condition like seborrheic dermatitis or psoriasis, check with your dermatologist before use.
Turn the dial to release the serum, then brush it directly onto your scalp along your part, hairline, temples and crown. Gently massage it in with the comb tips for a few seconds. Use once a day on clean, dry or damp hair. Morning or night both work, so pick whichever you'll stick to.
One bottle lasts about 30 days with daily use. A little goes a long way: around 3–5 clicks covers your main thinning areas. If you're treating a larger area or using it twice a day, you may go through it a little faster, so our multi-bottle bundles keep you consistent without running out.
It's suitable for most adults with any hair type. It contains no minoxidil, so there's no risk to pets or of unwanted hair growth elsewhere. If you're pregnant, breastfeeding or have a medical condition, check with your doctor before use.