Olaplex No.4 Fine Bond Maintenance™ Volumizing and Strengthening Hair Repair Shampoo

What it is: A purple conditioner that neutralizes brassiness and targets everyday damage to reveal bright, evenly toned, hydrated, and smooth blonds and grays.

Hair Texture: Straight, Wavy, Curly, and Coily

Hair Type: Fine, Medium, and Thå√å

Ingredient Callouts: Free of parabens, formaldehydes, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. It is also cruelty-free.

What Else You Need to Know: This is the best shampoo for fine hair. Clinically shown to double your hair’s volume quickly, maintaining lift all day while repairing everyday damage in one wash. The ultralight lather gently lifts away buildup, never stripping—leaving hair weightlessly clean, soft, shiny, and full of bounce.

Fragrance Description: Revitalize your senses with a bright burst of grapefruit zest, the crisp scent of sugared mint, ginger, and a sophisticated, grounding base of crushed sage.

Clinical Results: In a test, when used as a system with No.5FINE Bond Maintenance Conditioner (sold separately), results show:

- 2X more volumized hair, instantly and all day

- 2X stronger hair at a molecular level

- 60% less breakage to protect hair length and fullness

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Hair Concerns:
- Brassiness
- Color Safe
- Dryness

Key Benefits:
- Brightens hair color, enhances shine, and neutralizes unwanted yellow tones and brassiness
- Replenishes hydration and enhances softness and shine
- Cares for everyday damage and defends against future breakage

Highlighted Ingredients:
- Microfine Pigments: Evenly tone and brighten by reaching porous areas of the hair.
- Shea Butter: Nourishes, replenishes moisture, and detangles for soft, shiny hair.
- Olaplex Bond Building Technology: Strengthens to support strong, healthy-looking blond and gray hair.

What Else You Need to Know: This ultra-concentrated purple conditioner delivers microfine tone-balancing pigments to brighten natural or color-treated blonds or grays. The hydrating formula cares fr everyday damage, quickly detangles, and leaves hair soft, smooth, and shiny in one wash when used as a system with Olaplex’s No.4P (sold separately).

Fragrance Description: Olaplex’s signature scent features uplifting notes of grapefruit, sugared mint, and sage.

Clinical Results: In an independent consumer perception study of 60 women with bleached/color-treated blonde hair, when used with No.4P(sold separately):
- 90% agree hair was less brassy

In a clinical test, when used as a system with No.4P (sold separately), results after 1 use show:
- Hair is 89% smoother
- Hair has 52% less breakage