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Function of Beauty Reviews: is Function of Beauty Worth It?

Function of Beauty Reviews: is Function of Beauty Worth It?

Have you ever encountered a brand so incredibly popular that you couldn’t help but wonder if their products were just a tad over-hyped?

For me, that brand was Function of Beauty, a personalized hair care line that seemed to be everywhere, gracing the pages of magazines and dominating social media. While I was eager to give it a try, I also held reservations about whether their products could truly tame my unruly hair.

However, after putting the Function of Beauty line to the test over the course of a few months, I’m delighted to admit that I couldn’t have been more mistaken.

Part of the reason for my change of heart lies in the sheer delight of customizing the color and fragrance of the products – it’s a bit like a child picking out their favorite toys (yes, I confess, I felt like a 5-year-old). What truly won me over, though, was the ability to address five specific hair concerns with just one set of products, sparing me the need to purchase an array of different items.

Now, I must acknowledge that committing to a minimum expenditure of $54 for a shampoo and conditioner duo can be a bit daunting. That’s precisely why we’ve put together our comprehensive review of Function of Beauty’s hair care line here, aimed at assisting anyone contemplating the leap into the world of customized hair care.

What is Function of Beauty

But first, let’s get to know Function of Beauty and explore their emergence in the beauty industry.

Established in 2016, this brand was conceived by a trio of MIT engineers and developers: Zahir Dossa, Joshua Maciejewski, and Hien Kaplan. They were determined to make custom haircare accessible without the exorbitant price tags.

Fast forward seven years from their inception and a significant Instagram launch later, this custom haircare brand has become a beloved icon in the beauty world. With an astonishing array of over 87 trillion possible ingredient combinations, tailored to meet your specific haircare goals, it has garnered a dedicated following among beauty enthusiasts.

Function of Beauty has expanded its product range to include a comprehensive selection of hair care items, such as shampoo, conditioner, leave-in conditioner, serum, mask, and styling primer. This range is built around an interactive hair goals quiz, allowing customers to customize their products online prior to making a purchase.

In addition to hair care, the brand also features a variety of beauty products, encompassing body wash, face wash, and moisturizer.

Product Options

8oz Shampoo/Conditioner: $20 each (Purple shampoo and co-wash variants available)

16oz Shampoo/Conditioner: $35 each

8oz/16oz Combo: $43

8oz Combo: $39

16oz Combo: $49

3oz Serum: $19

7.oz Mask: $19

8oz Leave-in Conditioner: $19

Customization Process

Enjoy a simple 3-step quiz to select your hair type, hair goals, preferred scent, and color choices.


Delivered in clear plastic bottles, featuring your personalized name label. Shampoo and conditioner options come with optional pumps for your convenience. Plus, they include charming stickers for personal decoration.

Fragrance Selection

There are five standard scents available, spanning from sweet to fruity to floral, along with additional seasonal options. You have the flexibility to determine the intensity of the fragrance, with the medium option already offering a robust aroma. Alternatively, you can opt for a fragrance-free experience. Please note that the chosen scent will be applied to all products in your order.

Color Customization

Function of Beauty stands as the sole brand that grants you the power to personalize the color of your product. You have the choice of seven distinct colors or the option to keep it dye-free. Additionally, you can select individual colors for each product in your order.

Online Reviews and Subjective Results

When it comes to beauty products, individual results are inevitably subjective.

Function of Beauty, despite its grand entrance on social media, has garnered a mix of online reviews. Many users commend the line for its ability to soften, condition, and tame frizzy hair. However, there are others who express disappointment, citing a lack of desired results or even concerns like hair loss.

In response to these concerns, the brand asserts, “We stand firmly behind all of our products and have full confidence in their safety. Every ingredient we incorporate into our formulations complies with the rigorous cosmetic regulations of both the US and EU. Known as some of the strictest in the world. Additionally, our formulations undergo scrutiny by expert toxicologists. Beyond these measures, our products are manufactured in the United States and undergo thorough clinical testing to ensure safety and uphold quality standards.”

It’s worth noting that the brand maintains an impressive Trustpilot rating of 4.1 stars, based on a substantial total of 27,736 reviews.


Is Function of Beauty Safe for Colored Hair?

Function of Beauty products are indeed safe for dyed hair as they are sulfate-free, which prevents hair color from fading. Additionally, the initial quiz by the brand inquires about whether you color or treat your hair, allowing for tailored formulas. For those with blonde or highlighted hair, Function of Beauty also offers purple shampoo, conditioner, and masks designed to combat brassiness.

How Long Do Function of Beauty Shampoo and Conditioner Last?

The longevity of Function of Beauty products depends on usage frequency and the amount used per application. Regarding expiration, Function of Beauty recommends using shampoo and conditioner within 12 months of opening. On average, a 12-ounce bottle should last approximately three to four months with regular use. Though the duration can extend if you wash your hair less frequently.

Is Target’s Function of Beauty the Same as the Online Function of Beauty?

In short, not exactly. The Target line represents a simplified version compared to what you’d receive when ordering directly from Function of Beauty’s website. Target offers basic shampoo and conditioners tailored to four hair types: straight, wavy, curly, and coily. They also provide 10 “booster pods” corresponding to various hair goals, such as shine, deep conditioning, and volumizing. You can add up to three boosters to each base. In contrast, the online custom orders allow you to select up to five goals and have them mixed in for you.

The shampoo and conditioner bases at Target come in 11-ounce bottles with an exclusive peach fragrance. Unlike the varied scents available online. However, both the Target and online products are vegan, cruelty-free, free of sulfates and parabens, and packaged in bottles made from recycled plastic.

Can You Use Function of Beauty on Curly Hair?

Absolutely. The quiz covers different hair types, starting from straight and encompassing everything up to tight coils. Additionally, the company offers a customized co-wash for those who prefer it over traditional shampoo.

Final Assessment

  • Packaging: 7/10
  • Ingredients: 9/10
  • Texture/Application: 9/10
  • Performance: 8/10
  • Price: 8/10

Considering all aspects, it’s fair to conclude that Function of Beauty offers. The best value and a diverse range of products among the three brands evaluated. Their charming packaging has clearly earned them favor on social media. However, their brief and open-ended hair consultation process can sometimes result in users creating products that don’t meet their needs. Which was my initial experience with them.

Once you’ve gained a better understanding of their offerings. I believe their personalized shampoo and conditioner set is enjoyable and effective. Don’t forget to include the serum; in my opinion, it stands out as the star of their entire product line!