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Essentials Duo

$75.00

$64.00
🔘 Ready to ship
🔘 Free shipping on U.S. orders $75+
Description

Get the best of the Essentials, darling! Start with Clarifying Shampoo for a deep cleansing treatment and finish your wash routine with Reconstructing Hair Masque for deep replenishment, strength and smoothing.

Includes:
• Daily Clarifying Shampoo 8.5oz
• Reconstructing Hair Masque 3.4oz

BENEFITS

• Deep cleansing treatment, color protecting, color enhancing, anti-aging
• Gentle enough for daily use and great for all hair types
• A rich blend of proteins, Vitamin B5, and natural conditioners detangle, soothe, and infuse shine
• Sunflower Seed Oil and Argan Oil provide shine plus UV and humidity protection
• Ideal for split ends or surface damage

How To Use

Daily Clarifying Shampoo: Lather. Rinse. Repeat, if necessary.

Reconstructing Hair Masque: Distribute evenly on clean wet hair, starting at ends and working up to the scalp. Wait 2-5 minutes. Rinse.

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Pair with

Most Wonderful Hydrating Gift Set

Most Wonderful Hydrating Gift Set

Essentials Bundle

Essentials Bundle

'Best of the Best' Try-Me Set

'Best of the Best' Try-Me Set

Select a variant

Liquid Complex Culture

Our unique complexes define all Number 4 products and draw upon water and an advanced delivery system to infuse active ingredients and botanical agents for consistent, high performance results.

Liquid Vitality Complex

Rich in potent antioxidants which promote and enhance youthful vitality. Contains super foods Acai Berry, Hibiscus, Mangosteen, and Vitamin C

Liquid Vibrance Complex

Nutrient-rich blend helps protect color while enhancing natural shine and vibrancy. Contains Black Current, Algae, Yerba Mate, and Edelweiss

Liquid Defense Complex

Hydrates, reviatlizes and helps strengthen and repair damage. Protects against enviromental factors and stylistic damage. Contains Burdock Root, Oolong Tea, Moringa Seed Extract, Lavender, and Vegetable Protein

Liquid Purity Complex

Sulfate and sodium chloride (salt) free formulas help prevent buildup while helping protect color and natural sheen. Contains Lemongrass, Gooseberry, Oat Extract, and Pomegranate

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Word on the Street

Check out these rave reviews about this fabulous formula.

"My hair has never felt healthier, softer or smelled better."

– Savannah Culp

"I love this masque! I have super curly hair, and I use it as a leave-in conditioner. It’s amazing for my hair- which rarely gets dry or brittle."

– Teresa Patrick

"The BEST deep conditioner! It leaves my hair looking shiny, smooth, hydrated, and beautiful. I’ve tried innumerable deep conditioners over the years, and this is the absolute best!"

– Anonymous

ESSENTIAL COLLECTION
LUMIERE D'HIVER SIGNATURE FRAGRANCE

White Freesia, Golden Amber, & Warm Musk

4ème. Inspired by a clear winter sunrise in the heart of Le Marais, this delicate blend captures the radiance of the morning light, evoking the memory of a poetic moment—a soft, disheveled beauty, where the world feels still and timeless.

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The Jet Set

Transport strands with perfectly petite versions of your favorite formulas. Good things come in small packages.

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Frequently Asked Questions

What Products Come in the Essentials Duo?

The Number 4 Essentials Duo pairs two of the brand's best-selling treatment products to create a simple yet extremely effective hair repair routine.

The duo includes:
• Lumiere d'hiver Daily Clarifying Shampoo to gently remove product buildup, excess oil, chlorine, and environmental impurities without stripping moisture.
• Reconstructing Hair Masque to replenish hydration, strengthen the hair fiber, and improve softness and shine with proteins and Vitamin B5.

These formulas work together to create the perfect foundation for healthier-looking hair by cleansing thoroughly and restoring moisture in one routine.

Is the Essentials Duo Shampoo and Conditioner Gentle Enough for Daily Use?

The Daily Clarifying Shampoo is formulated to be gentle enough for regular use, despite its deep-cleansing performance. It effectively removes buildup while maintaining the hair's natural moisture balance, making it a great choice for anyone who uses styling products or experiences excess oil. It is also great for those interested in scalp wellness.

The Reconstructing Hair Masque is an ultra concentrated treatment rather than a daily conditioner. Most stylists recommend using it:
• Once or twice a week for normal hair or as needed
• Two to three times a week for dry, damaged, or color-treated hair
• More frequently if hair has been chemically processed or exposed to frequent heat styling

Using the two together helps keep hair clean, balanced, and deeply conditioned.

Is the Essentials Duo Suitable for All Hair Types?

Yes. The Essentials Duo works well for all hair types and textures because it focuses on two universal haircare needs: removing buildup and restoring moisture.

It works especially well for:
• Color-treated hair
• Dry or damaged hair
• Hair exposed to heat styling
• Hair with product buildup
• Fine, medium, and thick hair

If your primary concern is hydration or volume, the Essentials Duo also complements the Number 4 Hydrating and Volumizing collections as a weekly treatment routine.

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