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Scalp Serum For Thickness and Volume

Name: Scalp Serum for Thickness and Volume
Brand: The Earthling Co.
SKU: HC011
Price: 16.0 USD
Availability: InStock
Rating: 4.47 (15 reviews)

Powered by Apple Stem Cell Extract - clinically shown to thicken hair 80% in ingredient studies.

Thickness

Scalp Balance

Strength

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Details

Free of artificial fragrances, dyes, sulfates, silicones, parabens, and phthalates
Made with clinically proven active ingredients. Individual results may vary.
Vegan & cruelty-free
Manufactured in the USA
Low-waste glass packaging
Purchase includes:
1 Scalp Serum (1.0 oz)

Ingredients

Aloe Barbadensis Leaf Juice, Propanediol, Glycerin, Water (Aqua), Pentylene Glycol, Propylene Glycol, Maltodextrin, Xanthan Gum, Caprylyl Glycol, Citric Acid, Ethylhexylglycerin, Niacinamide, Potassium Sorbate, Sodium Benzoate, Isostearyl Isostearate, Eclipta Prostrata Extract, Euterpe Oleracea Fruit Extract, Oryza Sativa (Rice) Extract, Bambusa Arundinacea Leaf Extract, Schinus Terebinthifolia Seed Extract, Cetearyl Alcohol, Magnesium Chloride, Potassium Chloride, Sodium Chloride, Glyceryl Stearate, Cetearyl Glucoside, Tetrahexyldecyl Ascorbate, Tocopherol, Rosmarinus Officinalis (Rosemary) Leaf Extract, Phenethyl Alcohol, Sodium Citrate, Butyrospermum Parkii (Shea) Butter, Lactic Acid, Glucose, Pyrus Malus (Apple) Fruit Extract

Want to know more? Check out our Ingredient Database.

Add to your order: Shampoo & Conditioner for Thickness & Volume
The first clinically studied shampoo & conditioner bar for 85% more volume & 89% more shine.

$25.59 $31.98

20% Off

Intentional By Nature plastic-free Clinically Backed Ingredients Intentional By Nature plastic-free Clinically Backed Ingredients Intentional By Nature plastic-free Clinically Backed Ingredients Intentional By Nature plastic-free Clinically Backed Ingredients Intentional By Nature plastic-free Clinically Backed Ingredients Intentional By Nature plastic-free Clinically Backed Ingredients Intentional By Nature plastic-free Clinically Backed Ingredients Intentional By Nature plastic-free Clinically Backed Ingredients

Intentional, Naturally-Derived Ingredients

Apple Stem Cell Extract

Clinically shown to promote hair growth by extending the hair's active growth phase

Pink Berry Extract

Balances the scalp microbiome to address the root cause of flaking and imbalance

Rosemary Oil

Boosts scalp circulation & supports healthy hair growth

Thicker, Fuller Hair Starts at the Scalp

Skincare-grade scalp care that nourishes the follicle, soothes irritation, and supports visibly fuller, thicker-looking hair — rooted in clinically backed botanicals and modern microbiome science.

What to Expect: Your Scalp + Hair Transformation Timeline

Healthy hair grows from a healthy scalp — and that foundation builds over time. With daily use, you'll feel the difference quickly and see it compound week over week. Here's what most customers experience on their journey:

Results you can see & feel

Week 1-2: Soothe & Absorb

Lightweight serum absorbs instantly with no greasy residue. The scalp feels calmer and more comfortable from the very first application.

Weeks 3-4: Calm & Balance

Less itch, redness, and flaking as the scalp barrier and microbiome rebalance. The scalp feels soothed, hydrated, and healthier.

Weeks 8-12: Visibly Fuller Hair

With consistent daily use, clinically backed actives support fuller, thicker-looking hair and help defend follicles against environmental stress over time.

Daily Scalp Care, Made Simple

Shake before use.
Apply a few drops, or as needed, directly to a clean, dry scalp.
Massage into the scalp thoroughly. Do not wash hair or scalp after application — this is a leave-in treatment.
Use once or twice daily, ideally at bedtime.
A lightweight, water-based leave-in treatment and the foundation of your growth routine.

Clean scalp care that actually delivers — backed by our results guarantee.

We formulate with uncompromising standards so you can feel confident in what you're putting on your scalp and see real improvement.

Nourish the microbiome (4.0-5.0)
Free from toxic ingredients (no sulfates, parabens, or synthetic fragrances)
Low-waste packaging
100-day results guarantee (love your hair or get your money back)

Formulated to address the four drivers of thinning, aging hair:

Follicle vitality

Environmental stress

Scalp barrier function

Microbiome balance for lasting scalp resilience

Why Choose The Earthling Co?

Feature	The Earthling Co.	Other scalp serums
Price	$19.99 — same hero actives as premium serums	Often $49–$86
Ingredients	Clinically backed, antioxidant-rich botanicals; fragrance-free, sulfate-free, silicone-free	Often contain synthetic fragrances & harsh actives
pH-balanced	Yes Yes	No Not always
Scalp + Hair Benefits	Supports growth and density while soothing the scalp; absorbs fast with no buildup	Targets growth but can irritate or leave residue
Eco Impact	Low-waste, glass packaging, sustainably sourced ingredients	High plastic waste

Frequently Asked Questions

How do I use the Scalp Serum?

Shake before use. Apply a few drops, or as needed, directly to a clean, dry scalp and massage in thoroughly. Don't wash your hair or scalp afterward — it's a leave-in treatment. Use once or twice daily, ideally at bedtime. A little goes a long way, so start with a few drops and adjust from there.

Will it make my hair look greasy?

No — the Scalp Serum is a lightweight, water-based formula that absorbs quickly into the scalp without leaving hair greasy or weighed down. Apply it directly to the scalp rather than the lengths, and start with a small amount, building up only if needed.

Can I use it on color-treated hair?

Yes, the serum is formulated to be gentle on color-treated hair. They are sulfate-free, which helps preserve your hair color, and include ingredients. Many customers with color-treated hair find that our products help maintain their color and leave their hair feeling soft and healthy.

Is it suitable for all hair types?

Yes. The lightweight, fast-absorbing formula is designed to work across all hair types — straight, wavy, curly, and coily. Because it targets the scalp, it benefits anyone focused on thicker, fuller-looking hair, and it's especially suited to thinning hair and sensitive or flaky scalps.

When will I start seeing results?

Many customers notice a calmer, more comfortable scalp with less itch and flaking within the first couple of uses. Because hair growth happens at the follicle, fuller, thicker-looking results build with consistent daily use — typically becoming noticeable over 8–12 weeks. Scalp health is a long game, so consistency is key.

Is it safe for sensitive scalps?

Yes. The serum is fragrance-free and formulated without harsh chemicals, sulfates, parabens, silicones, or artificial fragrances — making it a great fit for sensitive, reactive, or flaky scalps. Niacinamide and Pink Berry Extract actively soothe irritation and reinforce the scalp barrier. As with any new product, we recommend a patch test if you have known sensitivities.

Is it TSA-approved for travel?

Yes — at NET 1 fl oz (29 mL), the bottle is well within the TSA 3.4 oz (100 mL) liquid limit, making it carry-on friendly and compact enough to toss in a gym bag or purse for daily use on the go.

Join the 1,000,000+ Women Transforming Their Hair

This scalp serum gave me hope after experiencing so much postpartum hair loss and hair thinning!

Madi G.

This is the first scalp serum that actually helped my hair!

Shelby F.

I love how this serum easily blends into my hair so easily without making it greasy. I overall notice my hair feels more balanced and healthy. Definitely worth it!

Stephanie L.

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Scalp Serum For Thickness and Volume

Add to your order: Shampoo & Conditioner for Thickness & Volume
The first clinically studied shampoo & conditioner bar for 85% more volume & 89% more shine.