Best Formaldehyde-Free Shampoo of 2026

Curly Girl Curl Definition Shampoo is a sulfate, paraben, formaldehyde, DEA, and MEA free shampoo that is suitable for all hair types. It gently removes impurities and protects color treated strands. Customers love the product for its superior curl definition and its ability to hydrate all hair types. However, some customers have noted that the product strips their hair and the labels on the bottles can wash off in the water.

Free & Clear Shampoo is a liquid shampoo designed for sensitive scalps. It removes build-up, creates shine, and boosts volume. It is free from fragrances and most chemicals, and is suitable for adults with thick hair. Customers report that it cleans well, but is a bit expensive, and that it is necessary for eczema. It is also allergy and respiratory friendly, and leaves hair very shiny. However, some customers find that it does not make their hair feel clean.

Vanicream Medicated Dandruff Shampoo is formulated with maximum over-the-counter strength for the control and reduction of the symptoms for dandruff and seborrheic dermatitis. It is free of proteins, sulfates, gluten, dyes, fragrance, masking fragrance, lanolin, parabens, and formaldehyde releasers. Customers have found it to be effective in relieving dry scalp, itchiness, and flaking, and have noted that it does not cause any reactions on sensitive skin. However, some customers have found that it can dry out their hair.

ACURE Curiously Clarifying Shampoo is a performance-driven hair care product that gently cleanses and removes buildup without stripping hair. Infused with lemongrass, this vegan shampoo boosts shine and replenishes moisture. Customers report that it leaves their hair feeling squeaky clean and shiny, although some find it doesn't lather as much as they'd like.

FRAGFRE Intense Hydrating Shampoo is a gentle, soothing wash that's great for your scalp and hair. It is free from sulfates and combines aloe vera extract for sensitive scalps. It works best on all hair types, including treated, fragile and sensitive scalps. It is made with a deeply hydrating formula that eliminates dry, damaged hair and transforms your locks into soft, silky hair. It is free of Fragrances, Colors, Parabens, Sulfates, Formaldehydes, Petrolatum, Phthalates, BHT, Irritating Alcohols & Preservatives and More. It is vegan and cruelty-free.

The Vanicream Sensitive Shampoo is designed to gently cleanse your hair and scalp while effectively removing buildup from products like conditioners and styling sprays. If you have sensitive skin or scalp, this shampoo is a great choice because it avoids harsh ingredients such as fragrances, dyes, lanolin, parabens, and formaldehyde releasers, helping to prevent irritation. Its mild, balanced formula is pH-friendly and free from sulfates and betaine, making it suitable for all hair types, including delicate scalps. Using this shampoo daily can leave your hair feeling soft, light, and easy to manage without any residue or harshness.

The KERAGEN Keratin Hair Bundle offers a gentle way to smooth and straighten your hair without harmful chemicals, making it perfect if you want to reduce frizz and tame curls naturally. The included clarifying shampoo deeply cleanses your scalp and hair, removing buildup while adding nourishing keratin and collagen to keep your hair hydrated and healthy. This bundle is especially beneficial if your hair feels dry or damaged, as it helps restore strength and shine. Plus, it’s safe for all hair types, including color-treated hair, giving you a convenient, effective solution for revitalizing your locks.

The KERAGEN Hair Smoothing Duo offers a powerful two-step hair care routine designed to give you smooth, manageable hair. The clarifying shampoo deeply cleans your hair and scalp, removing buildup to prepare your hair for the keratin treatment. This ensures you get the best results from the smoothing process. The Brazilian keratin treatment works to tame frizz and curls, leaving your hair sleek and smooth without using harmful formaldehyde. Both products are free of sulfates and formaldehyde, making them gentle and safe for all hair types, including color-treated or chemically treated hair. This duo provides a thorough cleanse and smoothing effect that improves your hair’s texture and overall look.

The Vanicream Sensitive Shampoo is specially designed for those with delicate skin, offering a gentle cleanse without harsh additives like fragrance, dyes, parabens, or formaldehyde releasers. This means you can wash your hair without worrying about irritation or allergic reactions. It effectively cleans your scalp by removing flakes, buildup from styling products, and excess oils, leaving your hair feeling soft and easy to manage. Plus, its mild formula is perfect for everyday use and works well for all hair types, making it a convenient choice for the whole family seeking a healthy scalp and smooth hair.

ALOXXI Violet Shampoo is a color refreshing shampoo that delivers bright results for those with blonde, grey or white hair. The deeply pigmented formula gently cleanses hair while providing hydration & without compromising blonde tones. It neutralizes brassiness and refreshes blonde, grey or white hair. Customers have praised the product for its luxurious feel, great scent, and ability to leave hair soft and pliable.