Function Of Beauty Discount Codes & Verified Offers for September 2026

Always reliable hair products

I've ordered from Function of Beauty a few times now, and they're consistently good. My Custom Shampoo and Conditioner arrived on time again, just like previous orders. The formula still works great for my hair, and I appreciate that I know what to expect. That consistency keeps me coming back.

Easy to order, good results

So, I decided to try out Function of Beauty, mostly because my friend kept talking about it. The hair quiz was actually pretty fun and simple to do. I ordered the Custom Shampoo and Custom Conditioner for my fine hair, with the Volumize goal. It came faster than I thought it would, which was a nice surprise. My hair definitely felt softer and had more body after using it for a bit. No complaints, it did what it said it would, and the whole process was smooth.

Good value for custom formula

I was looking for something specific for my hair and found Function of Beauty. The Custom Haircare Set felt like a good deal, especially with the first-time buyer discount. It definitely felt worth the price for a product tailored to my needs. Shipping was also pretty quick.

Detailed thoughts on my first custom order

I finally jumped on the Function of Beauty bandwagon and ordered a Custom Hair Mask and a Custom Leave-in Conditioner. The ordering process was quite thorough; the hair quiz really made me think about my hair goals like 'Deep Condition' and 'Anti-Frizz'. I appreciated the options for scent and color, making it feel very personalized. My package arrived about a week after ordering, and everything was well-packaged. The bottles came with reusable pumps, which was a nice touch, no extra waste there. I've been using the hair mask once a week, and it's definitely made my hair feel softer and less frizzy, especially with the leave-in. The fragrance I picked was nice, not too strong. The consistency of both products was good, not too thick or thin. I haven't needed customer support, so I can't comment on that, but the product quality seems solid. I'd recommend taking the time with the quiz to get the formula right. It made a noticeable difference for me.

Mostly happy, small delivery issue

I decided to try a Custom Skincare Set. The quiz was straightforward, and I liked being able to pick my goals. The Facial Cleanser and Moisturizer have been pretty good, my skin feels better than before. The only minor thing was that the delivery took a day longer than the estimated window, which wasn't a huge deal, but I was looking forward to trying it out. Overall, a positive experience, and I'd likely order again, but maybe they could tighten up the shipping estimates a bit.