These Are the Best Hair Growth Masks and Conditioners We Tested for Fuller, Healthier-Looking Locks

Our top pick for the best overall hair growth conditioner is the Redken Extreme Length Conditioner. This formula is enriched with amino acids, citric acid, and arginine, which blend together to ward off all types of damage — including more extreme situations — while also providing an ideal environment for hair growth. 

During the testing period, we saw an overall improvement in our hair’s hydration, texture, and appearance, and after just three weeks of use, we noticed some hair growth. We also love that this formula provides a protective layer that helps prevent further damage and breakage while also strengthening the strands, so it not only promotes growth but also supports strands to keep hair looking healthier. 

This formula is suitable for all hair types, especially if you have more damaged strands. Despite its ultra-nourishing formula, you don’t have to worry about it ever feeling greasy or heavy. 

Sizes: 1 oz., 10.1 oz., 16.9 oz., 33.8 oz. | Key Ingredients: Amino acids, citric acid, arginine | Hair Type: All

For a more budget-friendly hair growth conditioner, consider the Marc Anthony Grow Long Super Fast Strength Conditioner. This formula is enriched with a potent blend of caffeine, ginseng extract, and vitamin E to provide strands with deep nourishment while also supporting improved hair growth with regular use.

We love that the conditioner has a thick and creamy consistency that is easy to apply all over without making hair feel greasy and weighed down. Since it is so nourishing, our waves and curls appeared more pronounced — a sign of healthier hair — with regular use. 

Growth-wise, we were impressed by how well this formula promotes longer strands. While it won’t do much for dead ends (you’ll want to get those trimmed regularly for a healthier look), the conditioner helped promote growth after just four weeks of use. 

Size: 8.4 oz. | Key Ingredients: Caffeine, ginseng extract, vitamin E | Hair Type: All

The Nutrafol Strand Defender Lightweight Strengthening Conditioner for Thinning Hair is an excellent choice for those looking for a conditioner that can promote growth and re-growth in thinning hair. This conditioner is formulated with ximenia oil for its intensely hydrating properties, vegan proteins for strength, and glucose fibers for less breakage. 

When testing this formula over a six week period, we noticed our hair not only grew longer but also saw plenty of regrowth (especially around the hairline). Additionally, this formula is nourishing enough to provide plenty of moisture without weighing things down, so it’s compatible with finer hair types. 

While using this conditioner, we also noticed a significant reduction in hair fall and shedding, which tells us that it doesn’t just reverse the effects of hair thinning but can also help prevent it altogether. 

Size: 8.1 oz. | Key Ingredients: Ximenia oil, vegan proteins, glucose fibers | Hair Type: All

Curly hair types need a deep conditioning treatment nourishing enough to create more pronounced and bouncy curls without weighing things down — and we found exactly that in the Curls Blueberry Bliss Reparative Hair Mask. Formulated with organic blueberry extract, aloe leaf juice, and chamomile extract, this hair mask helps replenish hydration and improve overall health while also promoting growth. 

When testing this formula, we found that it works just as well — if not better — as some of the more expensive options we’ve tried, which is truly impressive for a $15 mask. On top of that, we found that the formula restored our hair texture and promoted hair growth, even on hair seemingly stuck at the same length. 

Size: 8 oz. | Key Ingredients: Blueberry extract, aloe leaf juice, and chamomile extract | Hair Type: Curly hair

If you have split ends and are looking for a deep conditioning mask that can help reduce the appearance and support stronger strands, we love the Briogeo Avocado + Kiwi Mega Moisture Superfood Mask. After six weeks of testing, we not only saw some regrowth but also experienced much healthier strands, especially on our ends, where our hair tends to take the biggest hit. 

This formula is one of our top picks because in addition to providing deep and effective nourishment, the mask isn’t heavy and doesn’t leave behind a greasy residue, so it’s compatible with all hair types. Plus, it has the best aroma — a fruity and sweet scent that isn’t overpowering and doesn’t linger. 

Considering how much product you get, this formula is on the more expensive side. However, if you want to try it out without the investment, you can snag this in a 2 oz. travel-sized jar for $15. 

Sizes: 2 oz., 8 oz., 33.8 oz. | Key Ingredients: Avocado oil, chia seed oil, kiwi extract, spinach | Hair Type: All

For a more budget-friendly way to address split ends, we recommend the Pantene Unbreakable Lengths Conditioner with Rice Water. This formula is enriched with a blend of lipids, amino acids, antioxidants, rice bran oil, and Pantene-Pro-Vitamin B5 to nourish hair, strengthen strands, and decrease breakage at the ends. 

While using this formula, we didn’t see a significant improvement in actual hair growth. Instead, we found that the conditioner works particularly well at preserving ends and preventing split ends from breaking, so hair actually looks longer and fuller with regular use. On top of that, this formula helps fight frizz and has a lightweight texture that is compatible with all hair types. 

Size: 8 oz. | Key Ingredients: Lipids, amino acids, rice bran oil, Pantene-Pro-Vitamin B5, antioxidants | Hair Type: All 

Concerned about hair shedding? Reach for the Mielle Organics Rosemary Mint Strengthening Hair Masque. This deep conditioning treatment is enriched with a blend of rosemary, sesame seed oil, honey, coconut oil, and biotin to provide strands with plenty of hydration and strength.

We tested this formula out after taking our hair out of a protective style, so our strands were much drier than usual. With a few uses, we found that our hair looked and felt much more moisturized and nourished while keeping breakage at bay. Since the mask has an ultra-thick consistency, you need to break it up into your hands in order to apply it all over. Nonetheless, this texture helps provide an effective replenishment of moisture after shampooing. 

Size: 12 oz. | Key Ingredients: Biotin, rosemary, sesame seed oil, honey, coconut oil | Hair Type: Natural hair types

If you experience shedding and are looking for something that will reduce the fall, we recommend giving Viviscal Gorgeous Growth Densifying Conditioner a try. This formula is enriched with keratin, biotin, and zinc, which work together to support hair growth while strengthening strands and reducing shedding. 

When testing this hair growth conditioner out, we experienced much less breakage and shedding and our hair looked and felt stronger, too. On top of that, the conditioner helps reduce the look of frizz and provides an overall smoother and shinier finish. 

Size: 8.45 oz. | Key Ingredients: Keratin, biotin, zinc | Hair Type: All

Lackluster strands be-gone with this strengthening conditioner. The Carols Daughter Goddess Strength Conditioner with Castor Oil features an ultra-nourishing formula that promotes hair growth and results in more moisturized and shiny strands. As its name suggests, the conditioner is enriched with castor oil, which has known hair growth benefits. Additionally, it also features black cumin seed oil for its ability to soothe scalp irritation and keep flakiness at bay. 

When testing this formula out, we saw a significant improvement in our strands’ strength and our hair also appeared fuller and shinier, too. While the formula does promote some hair growth benefits, we found that this one is more about providing a fuller and healthier look versus a longer hairstyle. 

Size: 11 oz. | Key Ingredients: Castor oil, black cumin seed oil | Hair Type: Natural hair types

Aging hair tends to fall subject to dry and lackluster finishes — but with the right conditioner, you can reduce these woes and promote fuller-looking strands, too. When testing hair growth masks and conditioners, we were impressed with the Alterna Caviar Anti-Aging Multiplying Volume Conditioner. Formulated with Color Hold to brighten color, Seasilk to strengthen and restore thickness, and an omega-3-rich Marine Plumping Complex, this formula helps support hair health all around while improving vibrancy and volume. 

This anti-aging hair conditioner also features a thick consistency that is easy to apply and even easier to rinse without the risk of excess residue. With regular use, hair feels lighter and bouncier with a shiny and soft finish. 

Size: 8.5 oz. | Key Ingredients: Marine Plumping Complex, Seasilk, Color Hold | Hair Type: All, especially aging strands

When you’re in a pinch, reach for the K18 Leave-In Molecular Repair Hair Mask, which is formulated with K18Peptide to repair color and bleach-treated hair, as well as strands damaged from heat styling. This leave-in conditioner treatment has an overall lightweight consistency that is easy to apply all over and goes virtually undetected in the hair — so you can style it as usual. 

While it isn’t meant to promote hair growth, the mask is highly reparative, and as a result, preserves the strands you currently have in order to make them appear longer, fuller, and healthier. With regular use, we found that this worked particularly at refreshing dry, dull, and damaged strands for a smoother and shinier finish. 

Size: 0.5 oz., 1.7 oz. | Key Ingredients: K18Peptide | Hair Type: All

The Kerastase Genesis Strengthening Hair Mask is another one of our top picks, especially because it doesn’t take long to see the benefits of this hair mask. Formulated with a nourishing blend of ginger root, edelweiss native cells, and arginine, the hair mask is designed to strengthen strands while also replenishing moisture throughout. 

We love this mask because you only need to let it sit on your strands for five minutes, and even after the first wash, you can see a difference in hair health. At the end of the six week testing period, the mask helps hair look longer and fuller with more volume and bounce to it. 

Size: 6.8 oz. | Key Ingredients: Ginger root, edelweiss native cells, arginine | Hair Type: All