STEP 01
Part your hair into sections
At night, on dry or towel-dried hair, part it into 4–6 lines from your hairline back to your crown.
Scalp Super-Concentrate — 1 bottle
The nightly scalp serum for visibly denser-looking hair, starting at the roots.
- Roots: a denser look, right where hair starts
- Coverage: fuller-looking at the part, crown and hairline
- Strands: look thicker, stronger and shinier
We recommend 3–6 months of consistent nightly use.
Ships in 1–5 business days.Tracked delivery to the 48 contiguous US states and DC.
- Fragrance-free
- Silicone-free
- Sulfate-free
- Paraben-free
- Vegan
- Cruelty-free
Description
A weightless, leave-on serum for your scalp. Five biomimetic peptides, arginine and calming botanicals in every dropper. Massage it in at night and leave it on. Made for hair that looks fuller at the root.
Key benefits
Every night, a few drops go along lines across your whole scalp: crown, sides, temples and part. Massaged in, the Serum:
- Conditions your scalp with five biomimetic peptides and an amino acid
- Keeps your scalp feeling calm and comfortable
- Leaves hair looking fuller and thicker all over, not just in one spot
- Adds softness and shine without weighing hair down
How to use
- Section dry or towel-dried hair into lines across your whole scalp: crown, sides and temples.
- Apply a few drops along each line.
- Massage in for 1–2 minutes. Leave on, no rinse.
Use every night. Patch test 24 hours before first use.
Shipping & returns
Ships in 1–5 business days, with tracking. Free shipping on the 3- and 6-Month Supply. Otherwise $8.95. We deliver to the 48 contiguous US states and Washington, DC. Every order arrives right. If anything arrives damaged, defective, wrong or missing, email us photos within 14 days and we’ll replace it free. If your parcel is lost on the way, we’ll send a replacement. Because these are personal-care products, we can’t take returns or refund change-of-mind purchases, opened or unopened. Shipping & returns policy
Good for
- Hair that looks fine, flat or thin anywhere on your scalp
- Roots that look fuller
- Every hair type and texture, including color-treated hair
- Anyone who wants a silicone-free formula with no added fragrance
ROOT · FORTIFY
How it fortifies the root.
Visibly denser-looking hair, starting at the roots.
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Fuller-looking roots
Five biomimetic peptides · Soy & wheat germ extractsCondition the scalp where each strand begins.
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A calm, comfortable scalp
Baikal skullcap · Rosemary · EucalyptusCalm the feel of your scalp and leave it refreshed, night after night.
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Hair that looks thicker and stronger
Arginine · Vitamin EAn amino acid and vitamin E condition and help protect the scalp where each strand starts.
1–2 minutes a night. Here’s how.
Focus on where you want a fuller look:HairlineTemplesYour partCrown
STEP 02
Drops along every part
Place a few drops along each line, across your whole scalp. Give a little extra where you want a fuller look.
STEP 03
Massage for 1–2 minutes
Work it in with your fingertips in small circles, front to back, so it reaches every part of your scalp.
STEP 04
Leave it on overnight
No rinse and nothing greasy. Sleep on it and style as usual in the morning.
Denser-looking hair, night after night.
1MONTH
Build the nightly habit
A few drops every night, massaged across your scalp. It takes 1–2 minutes before bed.
2–3MONTHS
Keep it consistent
Same few minutes, every night. Hair starts to look healthier, with more softness and shine.
4+MONTHS
Fuller-looking hair
With consistent nightly use, roots look fuller and hair looks thicker.
Cosmetic product. Individual results vary.
A clean scalp. A fed scalp. Stronger-looking strands.
WEEKLY · EXFOLIANT — NIGHTLY · SERUM — AFTER YOU WASH · MIST
OUR PICK
NIGHTLY · ROOT
Peptide Density Scalp Serum
Five biomimetic peptides on your whole scalp, every night.
$177 · 3 months
WEEKLY · BEFORE THE SERUM
Lactic Clarifying Scalp Exfoliant
Once or twice a week, lifts buildup so the Serum goes onto a clean scalp.
$39
AFTER YOU WASH · ON DAMP HAIR
Keratin Strengthening Hair Mist
A mist for after you wash. Strands look smoother and shinier.
$35
Questions, answered.
Email our Care TeamOur team replies within 1 business day, Mon–Fri, 9am–5pm US Eastern.Email support@tryprotokode.com
Help centerFAQs, shipping and returns, all in one place.Visit help center →Will it suit my hair type?
The Serum goes on your scalp, not your strands, so it suits straight, wavy, curly and coily hair, fine or coarse. For curls and coils, work in smaller sections so the drops reach your scalp.
How do I apply it?
Each night, place a few drops across your scalp, focusing on the areas where you’d like a fuller look, such as your hairline, temples, part or crown. Massage for 1–2 minutes, then leave it on.
Will it make my hair greasy or flat?
It’s a light, water-based leave-on made for your scalp, not your strands. Keep the dropper close to the skin, massage it in, and style as usual.
When will I notice a difference?
Month 1: build the nightly habit. Months 2–3: hair starts to look healthier, with more softness and shine. Month 4 and beyond: with consistent nightly use, roots look fuller and hair looks thicker. Cosmetic product. Individual results vary.
How long does one bottle last?
One 30 mL (1 fl oz) bottle lasts about a month of nightly use.
Will I be charged again?
No. Every order is a one-time purchase and nothing renews on its own. When you’d like more, just place a new order.
Can I use it on colored hair, braids or locs?
Yes. It goes on your scalp, so your color isn’t affected. With braids, locs or twists, apply a few drops along the parts and massage gently.
I have a sensitive scalp. Is it safe to try?
It has no added fragrance and no silicones. Patch test on your inner forearm or behind your ear and wait 24 hours before first use. If you’re pregnant, breastfeeding, have a medical condition or take medication, ask your doctor first. The full ingredient list is on this page.
What’s in it?
Five biomimetic peptides with arginine, soybean and wheat germ extracts, rosemary, Baikal skullcap, eucalyptus and vitamin E, in a light, water-based base. No silicones, sulfates, parabens or added fragrance. Contains wheat germ and soybean extracts.
Can I use it with my other hair products?
Yes. It goes on your scalp at night, so you can wash, condition and style as usual. On wash nights, apply it after washing, on dry or towel-dried hair.