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E! Online (US) - Top Stories

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How Often Should You Wash Your Hair? Experts Say It Depen...
Alexa Vazquez · 2026-06-12 · via E! Online (US) - Top Stories

hairwash hero image.jpgGetty Images

Scheduling hair wash day can feel like trying to solve a math equation. But the real question isn’t when I should wash my hair, it’s how often.

To answer the age-old question, E! connected with Lead Scalp Health Expert and Board-Certified Trichologist at Nutrire, Nelida D’Alessandro.

How often should I wash my hair?

Naturally, it’s complicated. “The honest answer is that there's no universal rule,” admits D’Alessandro.

While frequency depends on many factors, she says most people do well washing their hair two to three times per week, based on her expertise.

However, scalp type, lifestyle, and product usage can play a huge role in how often people should wash their hair.

In terms of scalp type, “An oilier scalp will need more frequent cleansing, while a drier scalp benefits from less,” notes D’Alessandro.

Similarly, “Hair texture is also relevant, as finer hair tends to show oil more quickly, while coarser or curlier textures can go longer between washes.”

If you’re very active (aka regularly breaking a sweat at the gym) or use a lot of heavy styling products, you’ll likely experience more buildup and therefore, need to wash more often.

Ultimately, “The goal is to keep the scalp clean and balanced without stripping it,” says D’Alessandro.

How do I keep my hair from getting greasy?

The key to preventing oily strands is ensuring that all buildup is removed when washing your hair.

“A clarifying or balancing shampoo used consistently is the most effective tool” in balancing and regulating oil production, according to D’Alessandro.

“For more significant buildup, incorporating a scalp exfoliant periodically can help,particularly if you sweat a lot or use heavy hair products daily.

Can I over wash my hair?

The short answer is yes. “Over washing can also lead to dryness, irritation, and a compromised scalp barrier over time,” says D’Alessandro.

Washing too frequently, especially with harsh formulas, can strip the scalp of its natural oils. When that happens, the scalp often overcorrects by producing even more oil, which creates a frustrating cycle,” she explains.

Now that you know how often you should wash your hair, it’s time to upgrade your hair wash routine with these expert-approved products.

What are the best shampoo for oily scalps?

Kristin Ess Hair One Signature Shampoo

Perfect for all hair types, this shampoo is infused with apple cider vinegar for removing buildup and hydrolyzed keratin to strengthen, it leaves your hair shiny and smooth while balancing your scalp's pH.

OUAI Detox Clarifying Shampoo

Perfect for all hair types, this shampoo is infused with apple cider vinegar for removing buildup and hydrolyzed keratin to strengthen, it leaves your hair shiny and smooth while balancing your scalp's pH.

Nutrire S.3 Balance

D’Alessandro calls this shampoo "a good option for oilier scalps dealing with buildup." It utilizes lactic acid to balance and regulate oil production.

OGX ProGrowth + Peptide Clarifying Shampoo

This shampoo is formulated with powerful peptides that reinforce each strand and promote hair growth. Meanwhile mandelic acid gently exfoliates and rids your scalp of stubborn buildup.

What are the best shampoos for dry scalps?

Top Rated

Moroccanoil Hydrating Shampoo

The moisture-balancing formula of this fan-favorite shampoo provides a gentle cleanse while boosting overall shine. Plus, it smells amazing.

L'Oreal Paris Elvive Hyaluron Plump Hydrating Shampoo

Achieve bouncier, fuller hair with this budget-friendly shampoo that individually plumps and hydrates each strand of hair thanks to a hyaluronic acid-rich formula.

BondiBoost Heavenly Hydration Shampoo

This aloe based shampoo intensely hydrates dry, damaged hair while also taming frizz and balancing the scalps pH levels.

CeraVe Gentle Hydrating Shampoo

Smooth and hydrate hair with this pH-balancing shampoo. It contains hyaluronic acid to lock in moisture and niacinamide to calm inflammation and strengthen the skin barrier. 

What are the best products for scalp exfoliation?

Nizoral Pre-Shampoo Scalp Build-Up Remover

Micro-exfoliating technology makes this an effective pre-shampoo treatment. It's designed to effortlessly remove scalp buildup and prep the scalp for thorough washing. 

Editor's Pick

R+Co Bleu Scalp Therapy Pre-Shampoo Exfoliating Scrub

Whenever I've applied tons of styling products to my hair, I use pre-shampoo scrub to help dissolve oil, dirt, and product buildup. It combines physical (sugar crystals) and chemical (AHAs) exfoliants for a double duty detox.

The INKEY List Salicylic Acid Exfoliating Scalp Treatment

Minimize excess oil production and exfoliate dead skin cells with this salicylic acid-infused pre-wash that's particularly effective if you're struggling with a flaky, itchy scalp.

Pacifica Scalp Detox Tonic

Prior to shampooing, go in with this detoxifying hair rinse. A blend of clarifying apple cider vinegar, anti-inflammatory rosemary oil, and exfoliating acids target congested hair follicles to loosen clogged pores to remove oil and product buildup.

L'Oreal Paris EverPure Exfoliating Scalp Care + Detox Scrub

This sulfate-free scrub will give your scalp the detox it's been needing. Apricot seed and menthol effortlessly purify and clear your scalp of excess oil, product buildup, and more impurities to prep hair for washing.

Peptides are everywhere—an expert reveals why the viral ingredient is the secret to hair growth.

How We Choose

The E! Insider Shop editors and writers search the internet to find the best products out there. We interview expert sources, comb through customer reviews, and use our own personal experiences to make shopping easier for our readers.

As an editorial team, we independently create content and determine coverage based on research, reporting and what we think our readers would like to read about. The goal of our content is to provide a service and inform readers who are on the hunt for the latest products to help make their life better. Items are sold by retailer, not E!. Pricing and availability are accurate as of publish time.