---
product_id: 688686126
title: "Revitalizing Scalp Serum, Once-Weekly Korean Hair Care, Non-Greasy Formula Tonic for Fuller-Looking Hair, Women & Men"
brand: "cosmerna"
price: "$156.83"
currency: USD
in_stock: true
reviews_count: 8
category: "Cosmerna"
url: https://www.desertcart.us/products/688686126-revitalizing-scalp-serum-once-weekly-korean-hair-care-non-greasy
store_origin: US
region: United States of America
---

# Once-weekly drop application Clinically proven hair density boost Proprietary SAMiRNA tech Revitalizing Scalp Serum, Once-Weekly Korean Hair Care, Non-Greasy Formula Tonic for Fuller-Looking Hair, Women & Men

**Brand:** cosmerna
**Price:** $156.83
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your hair game with science-backed simplicity.

## Quick Answers

- **What is this?** Revitalizing Scalp Serum, Once-Weekly Korean Hair Care, Non-Greasy Formula Tonic for Fuller-Looking Hair, Women & Men by cosmerna
- **How much does it cost?** $156.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/688686126-revitalizing-scalp-serum-once-weekly-korean-hair-care-non-greasy)

## Best For

- cosmerna enthusiasts

## Why This Product

- Trusted cosmerna brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unisex & Clean Formula:** Paraben and SLS free, unscented, and perfect for both men and women embracing healthy hair.
- • **Effortless Weekly Ritual:** Just a few drops once a week for fuller-looking hair—minimal effort, maximum impact.
- • **Dermatest 5-Star Excellence:** Awarded the highest rating for scalp compatibility—safe and gentle for daily confidence.
- • **Clinically Validated Results:** Backed by published research showing visible hair density improvements in just 16 weeks.
- • **Cutting-Edge SAMiRNA Technology:** Harness the power of advanced gene-silencing tech designed specifically for scalp and hair vitality.

## Overview

CosmeRNA Revitalizing Hair Follicle Tonic is a scientifically advanced, once-weekly treatment featuring proprietary SAMiRNA technology. Clinically proven to improve hair density over 16 weeks, it’s dermatologically tested and rated 5-star for scalp safety. Designed for both men and women with thin hair, this paraben- and SLS-free tonic offers a clean, effortless solution to fuller, healthier-looking hair.

## Description

desertcart.com : COSMERNA Revitalizing Scalp Serum, Once-Weekly Korean Hair Care, Non-Greasy Formula Tonic for Fuller-Looking Hair, Women & Men : Beauty & Personal Care

Review: Starting to see some results. - We quickly received the product for use on my husband and so far it has been very easy to use. Using it once a week has made using this type of product much easier to keep a routine. The applicator works great. We have started to notice some improvements on the crown of his head and are excited to see results after using it for more than 6 months.
Review: Easy to use product. - Item was received quickly and is easy to use. My husband has been using it weekly and it is very easy to apply. It has been a part of his weekly routine and I help apply it so that we are not wasting product in his hard to reach parts of his scalp. Make sure that the pen turns clockwise on first use to release the mechanism. So far so good.

## Features

- TARGETED THICKENING CARE: An advanced once-weekly scalp serum formulated to support the appearance of fuller, thicker, and denser-looking hair. Ideal for both women and men seeking a specialized approach to thinning hair concerns.
- EFFORTLESS WEEKLY ROUTINE: Ditch the hassle of messy daily applications. This lightweight, leave-on formula absorbs rapidly without greasy residue or weighing strands down—delivering authentic Korean hair care innovation directly to your roots.
- PROPRIETARY SAMiRNA TECHNOLOGY: Powered by CosmeRNA’s patented SAMiRNA technology, this cutting-edge solution offers a non-hormonal approach to scalp and hair care with a gentle, high-performance formula.
- SCIENCE-BACKED RESULTS (16+ WEEKS): Visible results take time and consistency. In published scientific research, visible improvements in the appearance of hair density and fullness were observed with consistent weekly application over 16 to 24 weeks.
- DERMATEST 5-STAR EXCELLENT SEAL: Awarded Dermatest’s highest 5-Star Excellent rating in Germany for skin compatibility and tested for irritation on sensitive skin, offering gentle scalp care even for sensitive skin.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DFL6JL22 |
| Active Ingredients | SAMiRNA-68 |
| Age Range Description | Adult |
| Best Sellers Rank | #122,311 in Beauty & Personal Care ( See Top 100 in Beauty & Personal Care ) #831 in Hair Regrowth Treatments |
| Brand | COSMERNA |
| Brand Name | COSMERNA |
| Customer Reviews | 3.7 out of 5 stars 46 Reviews |
| Hair Type | Thin Hair |
| Item Form | Drop |
| Item Volume | 0.07 fluid ounces |
| Item Weight | 2.88 ounces |
| Manufacturer | BIONEER CORPORATION |
| Material Type Free | Paraben Free, SLS Free |
| Number of Items | 1 |
| Recommended Uses For Product | Hair Thickening |
| Scent | Unscented |
| Scent Name | Unscented |

## Product Details

- **Active Ingredients:** SAMiRNA-68
- **Brand:** COSMERNA
- **Item Form:** Drop
- **Item Weight:** 2.88 ounces
- **Scent:** Unscented

## Images

![Revitalizing Scalp Serum, Once-Weekly Korean Hair Care, Non-Greasy Formula Tonic for Fuller-Looking Hair, Women & Men - Image 1](https://m.media-amazon.com/images/I/61+TnP-jSsL.jpg)
![Revitalizing Scalp Serum, Once-Weekly Korean Hair Care, Non-Greasy Formula Tonic for Fuller-Looking Hair, Women & Men - Image 2](https://m.media-amazon.com/images/I/71EM4iWhRhL.jpg)
![Revitalizing Scalp Serum, Once-Weekly Korean Hair Care, Non-Greasy Formula Tonic for Fuller-Looking Hair, Women & Men - Image 3](https://m.media-amazon.com/images/I/817Hma4lxxL.jpg)
![Revitalizing Scalp Serum, Once-Weekly Korean Hair Care, Non-Greasy Formula Tonic for Fuller-Looking Hair, Women & Men - Image 4](https://m.media-amazon.com/images/I/81kX4gs-oXL.jpg)

## Questions & Answers

**Q: What is CosmeRNA, and what makes this innovative, non-invasive topical serum unique for scalp care?**
A: Developed by Bioneer in Korea, CosmeRNA is a painless, once-weekly leave-on scalp serum. Powered by patented RNA technology, it revitalizes the scalp for fuller-looking hair with a lightweight, non-sticky, irritation-free formula.

**Q: Who is CosmeRNA suitable for, and how does it elevate your scalp care routine?**
A: Ideal for those wanting an effortless routine beyond daily scalp fatigue. Clinically tested and used worldwide for years, it delivers a clean, balanced scalp and fuller-looking hair with just a weekly touch.

**Q: How often should you apply CosmeRNA, and when can you expect visible results?**
A: Apply weekly for continuous care. CosmeRNA is clinically tested to help reduce sebum, soothe the scalp, and improve hair volume. Reduced shedding may be noticed sooner, while fuller-looking results typically appear in 4 to 6 months.

**Q: Is CosmeRNA safe for regular use, and what global awards or testing support its quality?**
A: Yes. CosmeRNA holds a Dermatest 5-star rating and features patented technology that outshined hundreds to win 1st place at Cosmoprof. Featured in the New York Post for its innovative approach and ease of use, it offers a hassle-free weekly routine.

**Q: How do you properly apply CosmeRNA as part of your weekly scalp care routine?**
A: Prep by thoroughly cleansing the scalp. Apply the proper amount along parted thinning areas, valuing every single drop. Massage well to ensure deep follicle absorption. Avoid washing or styling for at least six hours.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Starting to see some results.
*by E***H on September 16, 2026*

We quickly received the product for use on my husband and so far it has been very easy to use. Using it once a week has made using this type of product much easier to keep a routine. The applicator works great. We have started to notice some improvements on the crown of his head and are excited to see results after using it for more than 6 months.

### ⭐⭐⭐⭐⭐ Easy to use product.
*by E***S on August 19, 2026*

Item was received quickly and is easy to use. My husband has been using it weekly and it is very easy to apply. It has been a part of his weekly routine and I help apply it so that we are not wasting product in his hard to reach parts of his scalp. Make sure that the pen turns clockwise on first use to release the mechanism. So far so good.

### ⭐ No effect and a flimsy applicator that breaks
*by A***E on March 7, 2026*

1. Did nothing for my hair 2. Flimsy, plastic dispenser breaks easily 3. Very expensive for such a small dose I wouldn't waste your money.

## Frequently Bought Together

- CosmeRNA Revitalizing Hair Follicle Tonic 2ml with Once a week Application for Healthy Hair for Women and Men
- Nutrafol Women's Balance Hair Growth Supplements, Ages 45 and Up, Clinically Proven for Visibly Thicker Hair and Scalp Coverage, Dairy-Free, Soy-Free, Dermatologist Recommended - 1 Month Supply
- Revivogen MD Bio-Cleansing Shampoo for Thinning Hair, DHT Blocker Shampoo, Hair Loss Shampoo, Shampoo Thinning Hair, Soothes Scalp, Routine Shampoo for Women/Men Hair Loss, Hair Shampoo, 12oz

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-10-07*