free shipping with subscription

Activating Serum

A daily-use revitalizing serum that treats the scalp with amino acids, minerals, and powerful botanicals that help rebalance oil levels and maintain healthy hair growth.


Designed to detoxify, fortify & revive

A daily-use revitalizing serum that treats the scalp with amino acids, minerals, and powerful botanicals that help rebalance oil levels and maintain healthy hair growth.
Step One
Increase bloodflow
Stimulates micro-circulation of the scalp and hair follicles
Step Two
Stimulate Follicles
Promotes and maintains healthy hair growth and shine
Step Three
Fortify Strands
Strengthens hair and prevents breakage
Step Four
Achieve Balance
Controls dandruff and excess oil on the scalp that can interfere with hair growth

How it works

Activating Serum

Activating Serum helps to stimulate follicles to promote hair growth for people who are experiencing common hair loss issues such as: Androgenetic Alopecia, Male Pattern Hair Loss, Female Pattern Hair Loss, Telogen Effluvium, Postpartum Hair Loss, Hashimoto’s Disease, and more.

  • Stimulates microcirculation to the hair follicles
  • Helps strengthen fragile strands, preventing breakage at the root
  • Controls and balances oil production
  • Deters yeast and bacteria that can interfere with hair growth

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.

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.

Burdock Root

A powerful herbal remedy with moisturizing, anti-inflammatory, and antibacterial properties that prevents bacteria and yeast build-up on the scalp and suppresses inflammation of the hair follicles.


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—what's in the bottle, and what's not—are based on what has been tested and what works.

Learn More About Our Ingredients

Powerful results

Our customers have a lot to say!

“I’ve been using it for 4 months and my hair is GROWING back - and so is my confidence!”
"The level of thickness and regrowth exceeded all of my expectations"
Consistency is key! Happy with my results.
The Collective Labs serum has been a total game changer!
"This product is legit. Just look at the 4 month update pic!"
"Shocked at the difference"
“Growing back full after so much damage”
"Great growth after 3 months"
"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 -4pm PST.

Book now

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

Your message was sent. Thank you!

Get in Touch

Call Back Hours