The Best Shampoo for Hair Growth: Ingredients That Actually Work

The effectiveness of all hair growth products depends on the ingredients used in the formula. And while the evidence for significant regrowth is limited, certain hair growth ingredients have shown promise in scientific studies. These are the science-backed ingredients to look out for in a hair growth shampoo.

Caffeine reverses the effects of dihydrotestosterone (DHT), the main hormone involved in hair loss. It’s also known to increase blood circulation to the scalp.

A 2015 trial found 2% rosemary oil matched 2% minoxidil for increasing hair count after 6 months, with less itch. It also improves scalp circulation and has anti-inflammatory properties, creating a healthier environment for growth.

Peptides act as biological messengers to stimulate growth, reduce shedding, and boost keratin proteins. Amino acids are the building blocks of these proteins. Together, they strengthen the shaft and support a healthy follicle environment for a fuller look.

Niacinamide is a form of vitamin B3, an essential nutrient supporting scalp circulation and barrier health. It also plays an essential role in preventing inflammation.

Saw palmetto may help block 5-alpha-reductase, the enzyme that converts testosterone to DHT. Since DHT is a primary cause of androgenetic alopecia, it may help slow hair loss. 

Exfoliants like salicylic acid help to clear buildup/sebum so follicles aren’t obstructed, and antioxidants protect strands and support a healthy scalp.

You’ve been schooled on the good ingredients vs. the bad, but there are still lots of options when it comes to hair growth shampoo. So other than reading the list of ingredients on the label, how do you know which one is right for you? Depending on the formula, some growth shampoos focus on preventing damage and strengthening strands, while others work to clear the scalp and stimulate follicles at the root. Your best shampoo for hair growth is a formula that matches your scalp type, whether oily, dry, sensitive or flaky; and your main hair concern: thinning vs. breakage.

Our best shampoo for hair growth is Naturaltech ENERGIZING Shampoo. It’s a revitalizing mild shampoo for a fragile scalp and hair prone to falling out. It gently cleanses while giving a sensation of energy and well-being to the scalp. And just like all Davines formulas, it's made from natural, sustainably sourced ingredients, while being free of harmful ones.

For the best results, pair your hair growth shampoo with a leave-on serum and scalp exfoliator. Naturaltech ENERGIZING Superactive is the leave-on companion to the shampoo- it stays on to do the heavier lifting between washes. And Naturaltech DETOXIFYING Scrub Shampoo uses gentle, natural-origin scrub particles to clear buildup so follicles aren’t obstructed. Pairing these products creates a complete hair growth routine. DETOXIFYING Scrub Shampoo clears dead skin and buildup to unclog follicles, ENERGIZING Shampoo gently cleanses, and ENERGIZING Superactive delivers active ingredients directly to the scalp for maximum absorption and growth support.

Tackling hair breakage and split ends is another great way to ensure your hair is healthy and ready to grow. Incorporating formulas designed to reinforce the hair fiber will improve resilience and combat damage. The Essential Haircare MELU line is proven to reduce breakage from brushing by up to 39% and visibly reduce split ends by 37% after just one use.* Depending on your personal hair goals and wash routine, consider rotating MELU Shampoo and MELU Conditioner into your ritual. For out-of-the-shower care, the ingredients in MELU Spray and MELU Serum create a protective film that helps prevent breakage, while antioxidants preserve hair’s strength and structure. However you choose to design your routine, creating a healthy foundation for hair to grow is key.

In addition to using high-quality products made from natural ingredients on your hair and scalp, the best way to promote stronger, healthier hair is through a nutrient-rich diet. Load up on lean proteins, healthy fats and vitamins and minerals to give your scalp and hair everything they need for healthy growth and repair. Adding a regular scalp massage also helps to create a healthier environment for hair growth by delivering essential oxygen and nutrients to the follicles. Additionally, managing your stress, limiting heat and avoiding tight hairstyles will help to restore your strands to a healthy, natural state. And the most important thing to remember when it comes to stronger, healthier hair is to be patient. With a consistent hair growth routine, you should start to notice stronger-feeling hair within 6-8 weeks, and see improvements in hair growth in 3-4 months.