- Overview
- Choosing your shade
- How to use
- Ingredients
- Sustainable Packaging
- About the brand
Highlights
Suitable for
Damaged, dry, or color treated hair with split ends and breakage. Also works with dry, sensitive, irritated scalps and curly, textured, relaxed, and high and low porosity hair.
Why we stand behind it
This hair oil is formulated with moisturizing plant oils which are boosted by our innovative Anti-Breakage Technology that rebonds hair cuticles damaged by heat styling, straightening, bleaching, and brushing. Lock & Seal is engineered to seal down damaged hair cuticles and split ends for up to 5 washes while increasing moisture retention so your hair stays smooth and shiny between wash days.
this product meets
The Credo Clean Standard™
Every product we offer meets our industry leading standards for safety and sustainability.
learn moreThis product is
Gluten 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
Apply to damp or dry hair after your leave-in conditioner and styling products. A little goes a long way!
PRO TIP: Reapply to dry hair throughout the week to smooth, boost shine, and increase elasticity.
Full ingredient list
Click or tap an ingredient to learn more
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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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Sienna Naturals
Hannah Diop is the founder and CEO of Sienna Naturals. To create Sienna Naturals, Hannah harnessed the values of her upbringing and skills of her business background. She spent weekends researching ingredients found in nature and proven by science to improve wellness outcomes for textured hair and scalp. Working alongside cosmetic chemists, she made, tweaked and tested product formulations until a line of clean products that significantly outperform competitors was born. Hannah Diop, holds an MBA from Wharton and was a strategy consultant at McKinsey & Company where she worked for clients in big box retail and OTC Pharmaceuticals. Hannah is also a mother of two young children and is proud to lead a company that is more than 80% BIPOC and woman-led. She lives in Los Angeles, CA.
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