Name: Peptide Hair Growth Serum
Brand: Erynza
Price: 20.0 USD
Availability: InStock

1 BOTTLE = 30 APPLICATIONS

From $49.00 per bottle

Peptide Hair Growth Serum

4.6 | 895 reviews

Helps support fuller-looking hair around the part, crown and temples

Nourishes the scalp to create a healthier environment for stronger-looking hair

Lightweight formula absorbs quickly without greasy roots or heavy buildup

Peptides, rosemary and saw palmetto support hair vitality and visible density

Build your purchase

What it does

Nourishes the scalp and supports healthier-looking hair
Helps improve the appearance of density and hair vitality
Lightweight, water-based formula that absorbs without heavy buildup

Botanical extracts

Drug-free formula

Peptide-powered

Content · 1 fl oz (30 ml) per bottle

Will it work for me?

Every hair journey is different. Erynza is designed for women who want consistent scalp care and support for healthier, fuller-looking hair without a heavy, greasy routine.

Results vary, and gradual hair changes require consistent use. Sudden, patchy or painful hair loss should be discussed with a healthcare professional.

4.7/5 based on 5,000+ customers

Sophie L

Verified Buyer

"I started using the Peptide Serum mainly for the thinning at my crown, and honestly I didn't expect much at first because I'd tried similar products with little to no results. But within a couple of weeks, my part felt less obvious and I wasn't seeing as much in the shower drain. What surprised me most was how consistent it felt

Keisha M.

Verified Buyer

"I came across Erynza after seeing it recommended a few times and was honestly skeptical, especially since I've tried different serums before without much change. But after sticking with it for a few weeks, my edges felt fuller and less unpredictable under my wraps.

Amanda T.

Verified Buyer

"I didn't realize how much my shedding was bothering me until it started slowing down. Less hair in the brush, and overall just a more normal routine eight months postpartum. What I like most is that it doesn't feel like a quick fix

Danielle R.

Verified Buyer

"Finally one I didn't quit"
I've bought four serums in two years and quit every one because my roots looked wet. This one disappears. Week 6 the drain looked different; by day 90 my part looked like it did two summers ago.

THE SCIENCE BEHIND HAIR HEALTH

your scalp impacts everything your hair can do

Your scalp is home to thousands of hair follicles cycling through growth, rest and shedding phases every day.
When that cycle is disrupted — by stress, hormones, or a reactive scalp — hair can look thinner, finer, or shed more than usual.
Supporting your scalp daily helps calm irritation and create the conditions fuller-looking hair needs to grow.

Every Ingredient Has a Purpose

Formulated with research-backed peptides and botanicals that help create the right conditions for fuller-looking hair.

Signal Peptide Complex

Lab-produced peptides that mimic the growth-factor signals the scalp uses to communicate with follicles. Included because they're stable, well-tolerated on all hair textures, and don't require oil to deliver.

Benefits

Supports the follicle environment where density is decided

Water-soluble — no greasy residue

Well-tolerated on sensitive scalps

Saw Palmetto Extract

One of the most-discussed botanicals for women's hair, traditionally used for its role around scalp DHT. We use a standardized extract in a topical form so it stays where it's applied.

Benefits

Best-known botanical in the category

Topical, targeted — not systemic

Rosemary + Eucalyptus Leaf Extracts

Rosemary is the botanical women already trust from the DIY-oil era — here in a stable extract form, without the mess. Eucalyptus conditions and refreshes the scalp surface.

Benefits

The ingredient your research already recommended — done properly

Light, fading botanical scent

customer reviews

Loved by women building a consistent scalp-care routine

Sophie L.

Verified Buyer

My roots don’t feel greasy

1 week ago

“I’ve tried several scalp products before, but I stopped using them because they left my roots oily. This serum absorbs quickly and fits easily into my nightly routine. After consistent use, my scalp feels healthier and my hair looks fuller around my part”

Emily R.

Verified Buyer

Finally easy to stay consistent

1 week ago

“I wear protective styles, so I needed something lightweight that wouldn’t create buildup. The dropper makes it easy to apply directly to my scalp, and the formula feels clean and comfortable. I’m excited to keep tracking my progress”

Lucy N.

Verified Buyer

My scalp feels so much better

1 week ago

“I’ve been using it consistently around my crown and edges. The formula feels light, absorbs quickly and doesn’t leave any sticky residue. My scalp feels nourished and my hair is starting to look healthier

Pinli E.

Verified Buyer

Perfect for my protective styles

1 week ago

“I needed something I could apply between my braids without creating buildup. The dropper makes application easy and my scalp stays comfortable. It has become one of the easiest steps in my routine

Frequently Asked Questions

What is the Peptide Hair Growth Serum?

A nightly, water-based scalp serum with five signal peptides and saw palmetto, designed to support the appearance of fuller, denser-looking hair — without oils, drugs or greasy residue.

How do I use it?

Apply a few drops to a clean or day-two scalp, part in sections where you've noticed change, and massage for 1–2 minutes until absorbed. Use nightly. Do not rinse.

Is it safe for daily use?

Yes, it's formulated for nightly use on all hair textures, including color-treated and protective styles. Discontinue if irritation occurs and check with your physician if pregnant or nursing.

How is it different from other hair serums?

Most serums are oil-based, which leaves roots greasy and gets abandoned within weeks. Ours absorbs in under a minute and works under bonnets, wraps and day-two styling — the formula only works if you actually keep using it.

When will I feel results ?

Plan on 90 days. Weeks 4–8, many women notice less hair in the drain and a lighter brush. Weeks 8–12, fine hairs often show up along the part and temples in photos.