Function of Beauty Coily Hair Shampoo Review: Is It Good for Tight Curls?

If you have tight curls, coils, or kinky hair, you know that finding the right shampoo can feel like a never-ending quest. Many shampoos strip natural oils, leave hair feeling dry, or fail to provide the moisture that coily textures crave. That’s where Function of Beauty Coily Hair Shampoo comes in—a product specifically designed to cater to the unique needs of Type 4 hair. But is it really worth the hype? In this review, we’ll break down the formula, performance, and overall value to help you decide if this shampoo deserves a spot in your hair care routine.

Function of Beauty has built a reputation for customization, but their Coily Hair Shampoo is part of a targeted line that focuses on the specific challenges of tight curls: dryness, shrinkage, and breakage. Unlike generic shampoos, this one is formulated with nourishing ingredients that aim to cleanse without compromising moisture. We’ll also compare it to other coily hair products and share tips on how to get the most out of your wash day.

What Makes Function of Beauty Coily Hair Shampoo Different?

Function of Beauty Coily Hair Shampoo is not your average cleanser. It’s part of a specialized line that includes the Coily Hair Shampoo and other complementary products like conditioners and masks. The formula is sulfate-free, which is crucial for coily hair because sulfates can strip away the natural oils that keep your strands hydrated. Instead, it uses gentle surfactants that clean the scalp and hair without causing frizz or dryness.

Another standout feature is the inclusion of moisturizing ingredients like shea butter, coconut oil, and aloe vera. These work together to soften the hair cuticle, reduce tangling, and add a subtle shine. The shampoo also has a creamy, rich texture that lathers just enough to feel effective without being stripping. For those with tight curls, this balance is key—you want a shampoo that removes buildup but leaves your hair feeling supple, not squeaky clean.

• Sulfate-free formula to preserve natural moisture
• Infused with shea butter and coconut oil for deep hydration
• Creamy texture that gently cleanses without stripping

How Does It Perform on Tight Curls?

When testing Function of Beauty Coily Hair Shampoo, the first thing you’ll notice is how easily it distributes through dense, coily hair. The creamy consistency means you don’t need to use a large amount—a little goes a long way. After rinsing, your hair feels clean but not dry, which is a huge win for those with Type 4 hair. Many users report less shrinkage and more defined curl patterns after using this shampoo consistently.

One of the best ways to maximize results is to pair this shampoo with the Curly Hair Conditioner Jumbo. The conditioner is designed to lock in moisture and provide slip for detangling, making your post-wash routine smoother. Together, they create a balanced system that addresses both cleansing and hydration. For an extra boost, you can also incorporate a deep conditioning treatment like the Custom Purple Hair Mask once a week to repair and strengthen your coils.

• Leaves hair feeling soft and manageable after rinsing
• Reduces tangling and makes detangling easier
• Pairs well with the Curly Hair Conditioner Jumbo for best results

Key Ingredients and Their Benefits

Understanding what’s inside your shampoo is essential, especially for coily hair that needs extra care. Function of Beauty Coily Hair Shampoo features a blend of natural oils and botanical extracts. Shea butter is a star ingredient—it’s rich in vitamins A and E, which help seal moisture into the hair shaft. Coconut oil penetrates the hair fiber to reduce protein loss, while aloe vera soothes the scalp and adds a boost of hydration.

The formula also contains glycerin, a humectant that attracts moisture from the air, keeping your curls hydrated throughout the day. Unlike some shampoos that rely on heavy silicones, this one uses lightweight conditioners that won’t weigh down your coils. This makes it a great option for those who want a clean, bouncy curl without buildup. If you’re looking for a complete routine, consider adding the Coily Hair Shampoo to your cart alongside the Straight Hair Conditioner Jumbo if you have mixed textures in your household.

• Shea butter and coconut oil for deep moisture
• Aloe vera to soothe and hydrate the scalp
• Glycerin for long-lasting hydration without greasiness

Who Should Use This Shampoo?

Function of Beauty Coily Hair Shampoo is ideal for anyone with tight curls, coils, or kinky hair (Type 4A to 4C). It’s also a good choice for those transitioning from relaxed to natural hair, as the gentle formula helps restore moisture balance. If you have low-porosity hair, you’ll appreciate how the lightweight ingredients don’t sit on top of the hair but instead absorb easily. For high-porosity hair, the moisturizing properties help seal in hydration and reduce frizz.

That said, if you have fine or straight hair, this shampoo might be too rich. It’s specifically formulated for coily textures that need extra nourishment. If you’re unsure about your hair type, Function of Beauty offers a quiz on their website to help you find the perfect match. And if you’re traveling or want to try before committing, the Getaway Kit includes travel-sized versions of popular products, so you can test the Coily Hair Shampoo on the go.

• Best for Type 4 hair (4A to 4C)
• Great for transitioning or damaged hair
• Not recommended for fine or straight hair types

How to Incorporate It Into Your Routine

To get the most out of Function of Beauty Coily Hair Shampoo, start by wetting your hair thoroughly. Apply a quarter-sized amount to your scalp and massage gently with your fingertips—avoid using your nails to prevent irritation. Work the lather through your lengths, focusing on the ends where buildup tends to accumulate. Rinse thoroughly and follow with a conditioner like the Curly Hair Conditioner Jumbo to lock in moisture.

For deeper cleansing, you can use this shampoo once a week, especially if you use heavy products like butters or gels. On other wash days, consider co-washing or using a gentle cleanser to maintain moisture. If you have color-treated hair, the Custom Purple Shampoo can be alternated with this one to keep your tone vibrant while still caring for your coils. The key is consistency—using the right products regularly will transform your hair’s health over time.

• Use 1-2 times per week for best results
• Always follow with a moisturizing conditioner
• Alternate with the Custom Purple Shampoo if you have color-treated hair

Function of Beauty Coily Hair Shampoo is a solid investment for anyone with tight curls or coils. Its sulfate-free, moisturizing formula cleanses without stripping, leaving your hair soft, defined, and manageable. Whether you’re building a new routine or upgrading your current one, this shampoo delivers on its promises. Ready to give your coils the care they deserve? Check out the Coily Hair Shampoo and see the difference for yourself.