The Ultimate 5-Step Hair Care Routine for Flat Hair
Limp strands, meet your match.
Overview
When building a hair care routine for flat hair, prioritize volumizing products and techniques that create lift without weighing your hair down. Start by cleansing to remove oil and product residue, then condition the mid-lengths and ends to add moisture without weighing down the roots. Finish with a lightweight mousse and blow-dry your hair upside down to add lift and body.
Flat hair is a common concern, particularly for those with fine or naturally straight strands. These hair types tend to have less lift at the root, causing strands to fall close to the scalp and appear limp or lifeless. An oily scalp and product buildup can also weigh hair down and make it look flatter.
The right hair care routine for flat hair can help address these concerns, adding body and lift without weighing finer strands down. Ahead, we’re sharing a five-step volumizing haircare routine to help add body to flat hair, along with a look at some of our favorite products for lasting body and fullness.
Why Does Hair Fall Flat?
Hair can fall flat when excess oil, heavy products, or improper styling habits weigh strands down and reduce lift at the roots. Scalp sebum is one common culprit: When oil accumulates around the roots, it can make hair look limp and less voluminous. Over-conditioning or applying rich butter- or oil-based products directly to the scalp can also weigh hair down, particularly if you have fine strands.
Styling technique matters, too. Air-drying or blow-drying your hair without intentionally creating lift at the roots can cause strands to dry close to the scalp, making hair appear flatter. The good news is that even fine hair can look noticeably fuller, thicker, and more voluminous when you adjust your washing and styling habits.
A Simple 5-Step Volume Routine for Fine Hair
The best volumizing hair routine doesn’t start with styling—it starts in the shower. Follow these five steps to help remove excess oil and buildup, keep roots lightweight, and create the appearance of fuller, more lifted hair.
Step 1: Cleanse with a volumizing shampoo
Start with a volumizing shampoo to remove excess oil, product residue, and buildup that can weigh down your roots. Thoroughly massage the shampoo into your wet scalp and roots, where oil tends to accumulate, then rinse well to remove all traces of product. Any shampoo residue left behind can make hair appear limp or weighed down.
For a targeted volumizing wash, try the L'Oréal Paris Elvive Collagen Peptide + Lifter Volumizing Shampoo (pictured below). Its collagen-infused formula wraps strands to help make hair look thicker, fuller, and more voluminous. If your hair is color-treated, the L'Oréal Paris EverPure Sulfate Free Volume Shampoo is an excellent color-safe option to try. Its sulfate-free formula boosts volume while helping to preserve your salon (or DIY) color.
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Step 2: Condition the mid-lengths and ends only
When conditioning flat hair, follow one simple rule: apply conditioner from the ears down. Keeping conditioner away from your scalp helps prevent rich moisturizing ingredients from adding unnecessary weight at the roots. Apply a small amount through your mid-lengths and ends, leave it on for one to two minutes, then rinse thoroughly. A cool-water rinse can help smooth the hair cuticle for a softer, shinier finish.
As for which conditioner to use, we recommend the L'Oréal Paris Elvive Collagen Peptide + Lifter Volumizing Conditioner. Its lightweight formula helps detangle and hydrate dry ends while boosting volume for fuller, bouncier-looking strands. For a color-safe option, try the L’Oréal Paris EverPure Sulfate Free Volume Conditioner.
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Step 3: Apply a volumizing mousse to damp hair
After showering, towel-dry your hair to remove excess moisture, then apply a volumizing mousse, like the L'Oréal Paris Elvive Collagen Peptide + Lifter Big Lift Volumizing Mousse, from roots to ends. This collagen peptide-powered formula wraps the hair fiber, providing instant volume and lift for up to 72 hours with zero weigh-down.* It’s also an excellent pick for those with thin hair due to weight loss—in a clinical study, 95% of GLP-1 users agree hair looks instantly more voluminous after use of the L'Oréal Paris Elvive Collagen Peptide + Lifter Volumizing Shampoo, L'Oréal Paris Elvive Collagen Peptide + Lifter Volumizing Conditioner, and L'Oréal Paris Elvive Collagen Peptide + Lifter Big Lift Volumizing Mousse.**
*With system of shampoo, conditioner, and mousse vs. unwashed hair
**In a consumer test when using system of shampoo, conditioner, and mousse tested with GLP-1 users
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Step 4: Blow-dry hair upside down
Knowing how to blow-dry flat hair properly can make a huge difference in how voluminous your mane looks. After applying your mousse, flip your head upside down and blow-dry, directing the airflow from the roots to the ends. This encourages the roots to dry away from the scalp rather than lying flat against it. For extra lift, you can also coax hair into place with your fingers or a round brush.
Once your hair is dry, finish with the blow-dryer’s cool-shot setting for about 10 seconds. The cooler air helps set the style and can help your roots maintain their lifted shape. For additional hold, lightly mist the crown with L'Oréal Paris Elnett Satin Extra Strong Hold Hair Spray - Unscented, which provides brushable, touchable hold without leaving hair feeling stiff.
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Step 5: Refresh roots between wash days with dry shampoo
Between wash days, excess oil can build up at the roots and make flat hair look limp. To refresh your style, mist your roots with a dry shampoo, like the L'Oréal Paris Elvive Collagen Peptide + Lifter Big Fresh Volumizing Dry Shampoo. It absorbs excess oil while helping to boost volume for full, voluminous-looking hair.
To apply, shake the can well and hold it about 8 to 12 inches from your scalp. Spray in light bursts onto individual root sections, then wait about two minutes to allow the dry shampoo time to absorb oil. Massage it into your roots with your fingertips to distribute the product and revive the appearance of flat, limp hair.
Volumizing Product Breakdown: Mousse vs. Root Spray vs. Dry Shampoo
Mousse, root-lifting spray, and volumizing dry shampoo can all help flat hair look fuller, but they serve different purposes. Mousse builds overall body from roots to lengths, root-lifting spray provides targeted lift at the crown, and dry shampoo absorbs excess oil to refresh limp roots between washes.
| Product Type | Target Zone | Primary Function | Application Timing | Key Benefit |
| Volumizing mousse | Entire head | Builds body and provides hold | Damp hair, before blow-drying | Root-to-tip fullness; flexible hold |
| Root-lifting spray | Roots and crown | Provides targeted root lift | Damp hair, before blow-drying | Targeted height at the crown of the head |
| Dry shampoo | Scalp and roots | Absorbs excess oil and refreshes hair | Dry hair, between wash days | Revives limp, greasy roots and adds volume |
For the most comprehensive approach, use a volumizing system, like the L'Oréal Paris Elvive Collagen Peptide + Lifter collection. Each product in the lineup supports a different stage of your hair care routine for flat hair, with everything working together to promote fuller, bouncier-looking hair.
4 Styling Hacks To Prevent Flat Hair Throughout The Day
To keep your hair looking voluminous and bouncy, incorporate these simple styling tricks into your hair care routine for flat hair:
- Flip your part: Once your hair is completely dry, shift your part about an inch to the left or right. Changing the direction of your roots can help create instant lift where your hair tends to fall flat.
- Use large Velcro rollers: Place two to three large Velcro rollers at the crown while your hair is still warm from blow-drying. Let your hair cool completely before removing the rollers to help set and maintain extra height at the roots.
- Sleep in a loose topknot: Before bed, loosely gather dry hair at the top of your head and secure it with a silk scrunchie. Keeping the hair elevated while you sleep can help preserve some root lift overnight without creating tight creases. (For more ways to maintain your style overnight, check out 11 Ways To Protect Your Hair While You Sleep).
- Avoid touching your scalp: Try to keep your hands away from your roots throughout the day. Natural oils from your fingers can transfer to your hair, adding weight and making roots look greasy or flat.
Frequently Asked Questions About Flat Hair Routines
How often should you wash flat hair?
The best flat hair washing routine depends on your hair type and how quickly your scalp becomes oily. Fine or straight hair may need washing every one to two days because excess sebum can build up quickly and weigh down the roots. A lightweight volumizing shampoo can help remove oil and buildup.
Does conditioner make hair flat?
Conditioner can make hair look flat when a rich formula is applied too close to the roots or used in excess. To avoid weighing down flat or fine hair, apply a lightweight conditioner from the mid-lengths to the ends, skipping the scalp and roots. For more tips on using conditioner properly, check out How To Use Conditioner for Hydrated, Healthy-Looking Hair.
How can I get volume in flat hair without heat?
You can add volume to flat hair without heat by applying volumizing mousse to damp hair and styling it in a loose, high bun. Let your hair air-dry completely, then release the bun and gently fluff your roots with your fingers. This can create soft, heatless body and movement.
Can dry shampoo be used on clean hair?
Yes, you can use dry shampoo on clean, dry hair to help maintain the appearance of volume between washes. Applying a small amount to the roots can absorb excess oil as it develops and add texture and grip, which may help prevent roots from looking greasy or falling flat.
Next Up: Hair Treatment for Thin Hair: How To Care for Fine Strands
Photo courtesy of L’Oréal Paris
