Best Shampoos for Thin, Oily, Flat Hair That Add Volume

Maintaining volume without weighing hair down can be challenging when hair is thin, oily, and prone to looking flat. The following shampoos are formulated to clarify buildup, lift roots, and nourish strands so you get noticeable body and bounce. Each option targets oily roots while preserving length and shine, helping you achieve a fuller appearance throughout the day. Below is a curated selection of five standout products, with a quick reference to key benefits for easy comparison.

Product Brand Key Benefit
MONDAY HAIRCARE Volume Shampoo MONDAY HAIRCARE Hydrolyzed collagen and macadamia oil for volume and nourishment
OUAI Fine Hair Shampoo OUAI Biotin, keratin and chia seed oil for stronger, thicker strands
L’Oréal Paris Elvive Hyaluron + Pure L’Oréal Paris Clarifies oily roots; hydrating hyaluronic acid for hydrated lengths
OGX Clarifying Strength + Rosemary Mint OGX Refreshes oily hair with rosemary and mint; helps remove buildup
Dove Volume & Fullness Dove Bio-Protein Care technology for lasting fullness

MONDAY HAIRCARE Volume Shampoo


MONDAY HAIRCARE Volume Shampoo bottle

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For thin, fine, and flat hair, MONDAY HAIRCARE Volume Shampoo combines Hydrolyzed Collagen with Macadamia Oil to boost body without heaviness. The formula is multi award-winning, offering lightweight cleansing that supports volume at the roots while delivering nourishment to the lengths. It is suited for daily use and aims to leave hair feeling buoyant and refreshed.

OUAI Fine Hair Shampoo


OUAI Fine Hair Shampoo bottle

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OUAI’s Fine Hair Shampoo is designed to add major bounce for light strands. The lightweight, sulfate-free formula is enriched with biotin and keratin to reinforce each strand from the inside out, while chia seed oil delivers deep hydration and shine. The shampoo aims to leave hair soft, voluminous, and less prone to breakage, without weighing down fine hair.

L’Oréal Paris Elvive Hyaluron + Pure 72H Purifying Shampoo


L'Oréal Paris Hyaluron + Pure Purifying Shampoo

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This purifying shampoo for oily hair uses a dual-action formula with Salicylic and Hyaluronic Acids. It claims to remove residue instantly and refresh roots for up to 72 hours. It’s inspired by skincare science and is part of a regimen that aims to protect the lengths while maintaining clean, buoyant roots. A bright, fresh fragrance accompanies the cleansing routine, making it a popular choice for refreshed-looking hair.

OGX Clarifying Strength + Rosemary Mint


OGX Clarifying Strength + Rosemary Mint Shampoo

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OGX Clarifying Strength + Rosemary Mint aims to remove oil and residue from oily hair while imparting a refreshing aroma from rosemary and mint. The formula uses a blend of moisturizing agents to help strands feel strong and not stripped, contributing to a healthier-feeling, clean scalp and lightweight, vibrant hair.

Dove Volume & Fullness


Dove Volume & Fullness Shampoo bottle

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Dove Volume & Fullness is designed to boost body for flat, fine hair. The system uses Biotin and Bio-Protein Care technology to help regenerate hair strength and provide a fuller look with every wash. The formulation emphasizes all-day volume without sacrificing softness or manageability, making it a practical choice for everyday use.

Buying Guide

Key purchase considerations for shampoo aimed at thin, oily, flat hair include cleansing strength, clarifying properties, and how the formula affects volume and weight. Look for active ingredients that target oil control at the scalp while preserving moisture on the lengths to prevent limpness. Hydration can help prevent breakage, but formulas should avoid weighing hair down. Sulfate-free options are popular for daily use, yet some clarifying shampoos may utilize gentle surfactants to balance cleansing with scalp comfort. Consider fragrance, color-safety, and whether the product suits color-treated hair. For best results, pair a clarifying shampoo with a lightweight conditioner or volumizing product designed for fine hair to maximize lift and longevity of volume throughout the day.