




- Overview
- Choosing your shade
- How to use
- Ingredients
- Sustainable Packaging
- About the brand
Highlights
Suitable for
All hair types.
Why we stand behind it
The Rosemary Serum is an advanced leave-in serum for daily use. A combination of 70% infusion of Rosemary (Water/Oil/Extract) and 5% Capixyl™ and a supports denser, fuller, healthier-looking hair. The Rosemary Serum also includes a micro-dose of plant proteins and essential ceramides. The Rosemary Serum is a clear, quick-dry, and no-residue serum. The Rosemary Serum smells like pure Rosemary. No fine fragrance has been added. The Rosemary Serum does not smell like the Rosemary Shampoo or the Rosemary Conditioner. Dermatologist-Tested. Hypoallergenic. Non-Comedogenic. Color-Safe.
Key ingredients
70% Rosemary (Water/Oil/Extract): Helps provide nutrients to the scalp.
5% Capixyl™: Helps support denser, fuller, healthier-looking hair.
this product meets
The Credo Clean Standard™
Every product we offer meets our industry leading standards for safety and sustainability.
learn moreThis product is
Cruelty Free
Vegan
Gluten Free
Alcohol Free
What is an undertone?
An undertone is the color beneath the surface of your skin, which never changes (even with a tan). There are three types of undertones:
Pink/Cool
I see red or pink undertones around the perimeter of my face and neck.
My skin burns easily, but barely tans.
My skin looks better in silver jewelry than gold.
Neutral
I see both pink and yellow undertones around the perimeter of my face and neck.
My skin sometimes burns and sometimes tans.
My skin looks good in both gold and silver jewelry.
Yellow/Warm
I see yellow or golden undertones around the perimeter of my face and neck.
My skin rarely burns, but tans easily.
My skin looks better in gold jewelry than silver.
Find your shade match
Take our 1 minute quiz and get matched to real people with your skin tone and type.

Usage
Daily use is required for results. Use in damp or dry hair. Squeeze the bulb to fill the pipette half-full. Apply to areas where treatment is needed or all over. Massage with fingertips. Do not rinse. Style as usual. The Rosemary Serum equates to a 30-Day supply. Use 1 ml / day.
For best results, use with the Rosemary Shampoo and Rosemary Conditioner. Warning: Use as directed only. If product enters eye, rinse with water. If irritation occurs, discontinue use, and consult a physician.
Full ingredient list
Fragrance
Rosemary Serum smells like pure Rosemary. No fine fragrance has been added.
Radical Fragrance transparency
Credo believes in your right-to-know.
US law does not require fragrance transparency. Credo requires all brands to categorize the fragrance in each product and encourages full ingredient disclosure.
This fragrance is comprised of:
essential oils
certified organic fragrance
natural fragrance
naturally-derived fragrance
synthetic fragrance
Help us end beauty packaging waste
We co-founded the nonprofit Pact to demystify how to recycle your beauty packaging empties and divert waste from landfills.
How to recycle your empties
1. Disassemble and clean all components
2. Pick the right disposal bin
3. Drop off your empties at your nearest Pact bin
1 Product Recycled = 10 Credo Rewards Points
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At Nécessaire we believe in less, but better. We design the personal care we need to support our health and wellness. All of our products are dermatologist-tested, hypoallergenic, non-comedogenic and vegan. We use our business to make a positive environmental impact everywhere we can. Nécessaire is a Certified B Corp, Certified Climate Neutral, Certified Plastic Neutral and a How2Recycle partner. Nécessaire donates 1% of all sales to environmental non-profits via 1% For The Planet.
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