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Fortifying Conditioner

Repair, soften, and prevent breakage with this ultra-nourishing conditioner. Infused with the active natural botanicals of tamarind and monoi oil, this lightweight treatment deeply conditions with the protective properties of nature.   

Sulfate-Free | Paraben-Free | Vegan | Gluten-Free Cruelty-Free | Dermatologist Approved
$22
$25
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$22
$25
Subscribe & Save Delivered to you monthly.
Pause or cancel anytime.
$25
One-time Purchase 1 month supply delivered once.
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Designed to detoxify, fortify & revive

Description
Step One
Prepare
Eliminate chemical residue and buildup
Step Two
Repair
Strengthen hair and prevent breakage
Step Three
Revive
Stimulate healthy hair growth
A clean, powerful, and safe daily regimen that sets the stage for healthy hair growth. Packed with DHT blockers, infused with powerful botanicals, and formulated with the best from nature, activated by science.

How it works

Fortifying Conditioner

Infused with active botanicals, this lightweight treatment deeply conditions with the protective properties of the Plumeria flower. Tamarind, a fruit traditionally used to strengthen hair, helps soothe scalp irritation and defend against free radicals. Lilac stem cells work to stimulate the hair at the root while sealing damaged strands.

  • Deeply conditions and strengthens hair
  • Helps repair strand damage
  • Defends against UV exposure and free radicals
  • Detangles, softens, smooths, and adds shine

Powerful ingredients

Lilac Stem Cells

Active plant cells that repair strand damage, reduce scalp irritation, and stimulate cell energy at the root for healthier, shinier hair.

Saw Palmetto

The berries of the saw palmetto are known to be a dihydrotestosterone (DHT) blocker. They specifically affect the 5-alpha reductase enzyme, which is responsible for converting testosterone into DHT - the hormone responsible for male and female pattern hair thinning.

Ginseng Root

An ancient herbal remedy that stimulates scalp microcirculation, helps restore the natural hair growth cycle, and inhibits the creation of DHT, the main hormone responsible for hair loss.

Biotin

Also known as vitamin B7, biotin helps strengthen and prevent hair breakage at the root by coating and fortifying the strand itself. It also has properties that protect the scalp against environmental stressors.

Malabar Kino Bark

Derived from the dark sap of the Indian kino tree, this ingredient has antimicrobial, antifungal, and astringent properties that balance scalp oil and prevent infection of the hair follicles.

Our ingredient choices—the forms, what we include, and what we don't—are all made based on what you really need.

See all ingredients

Powerful results

Our customers have a lot to say!

Before
Growing
Iggy
“I’ve been using it for 4 months and my hair is GROWING back - and so is my confidence!”
Before
Growing
Dana
"The level of thickness and regrowth exceeded all of my expectations"
Before
Growing
Charlotte
Consistency is key! Happy with my results.
Before
Growing
Kendall
The Collective Labs serum has been a total game changer!
Before
Growing
Edward
"This product is legit. Just look at the 4 month update pic!"
Before
Growing
Khiven
"Shocked at the difference"
Before
Growing
Kris
“Growing back full after so much damage”
Before
Growing
Mike
"Great growth after 3 months"
Before
Growing
Reiss
"I was amazed by the results!"
Learn More About Our Results

Meet Our Medical Advisory Board

We work with a lot of exceptional and thoughtful people—like the dermatologists, chemists, and medical doctors on our Medical & Scientific Advisory Board, who help guide our product innovation and research.

Shala Fardin, MD Board-Certified Dermatologist
Dominic Patawaran, MD Board-Certified Physician
Cecilia The, O.M.D. Doctor of Eastern Medicine
Chat with a scalp wellness expert now

We’re here for you. Our team is on standby Monday - Friday from 10am -5pm PST.

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We want you to ask questions

Our scalp wellness experts have the answers you need.

Is Activating Serum safe for women and men?

While the underlying causes of hair thinning can be different for men and women, everything we make here at Collective Laboratories is designed to work for all people–regardless of gender.

I’m not currently losing hair, but I want to prevent it. Will this help?

Yes! Prevention is the most effective measure that you can take against thinning hair. The active botanicals and science-backed ingredients in Activating Serum help nourish your scalp and maintain follicle health. With regular use, Activating Serum helps maintain your hair’s normal growth cycle.

Why is this a subscription?

You wouldn’t use an anti-aging cream once and expect to see results, right? The same goes for your hair. Consistency is key when it comes to supporting the health of your scalp and strands, and it’s the little steps you take every day that really make a difference.That’s why we decided to offer Activating Serum in a subscription – so it’s easier to continue supporting your hair every day.

When will I start seeing results?

Activating Serum starts working immediately, but it can take up to three months for you to see noticeable results simply because it takes a while for your hair cycle to respond to treatment. Patience and consistency are key; new hair doesn’t happen overnight.

Where are your products made?

We source ingredients from around the world, but we make our products in our lab in California.

Can I use these products if I’m also using prescription hair loss medication?

Yes, our products work with internal prescription hair loss medications like finasteride and topical medications like minoxidil. If you are using other topical medications, please check with your doctor first before layering treatments.

Reviews and Testimonials