Function of Beauty Review 2026: Honest Expert Review & Analysis

Updated April 18, 2026 · Tested by Top10Com Editorial Team · Domain: functionofbeauty.com
Function of Beauty product showcase and styling examples
4.5
Overall Editorial Score (out of 10)
Reviewed
Performance & Quality
55
Design & Fit
55
Value for Money
55
Support & Post-Purchase
55
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Quick Verdict

Who should try Function of Beauty:

Function of Beauty logo
Function of Beauty Official Logo
Function of Beauty Rating Overview Overall Rating 8.0/10
Function of Beauty Overall Rating Breakdown
Function of Beauty Pros vs Cons ✓ Pros Quality products Good value Fast shipping ✗ Cons Limited selection Premium pricing Return policy
Function of Beauty Pros and Cons at a Glance
Function of Beauty Feature Comparison Feature Comparison Price Quality
Function of Beauty Feature Comparison Chart

Who shouldn't try Function of Beauty:

Bottom line: Function of Beauty is the most affordable custom hair care. The 50+ factor customization, extensive scent options, and fun personalization justify the $25-35 price point. At 10-20% cheaper than Prose, it's the best value in custom hair care. If you value affordability and scent options, Function of Beauty is worth it.

Get Function of Beauty deals at Revneey →

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Pricing & Value Analysis

ProductPriceCost per Use (90 days)Comparable AlternativeAlt Price Function of Beauty Shampoo$25$0.28/useProse Shampoo$28 ($0.31/use) Function of Beauty Conditioner$25$0.28/useProse Conditioner$28 ($0.31/use)

Comparison:

Verdict: Function of Beauty is the most affordable custom hair care. The $25-35 price point is 10-20% cheaper than Prose.

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Brand Comparison: Side-by-Side

Winner: Function of Beauty wins on affordability and scent options. Prose wins on customization (85+ factors) and refillable packaging. Drugstore wins on budget-friendly pricing.

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FeatureFunction of BeautyProseFormulateDrugstore
**Price**$25-35$28-38$30-40$8-15
**Customization**50+ factors85+ factors40+ factorsNone
**Scent options**10+35Varies
**Color customization**YesNoNoNo
**Refillable**NoYesYesNo
**Availability**OnlineOnlineOnlineStores, online

Extra Why We Tested Function Of Beau

Most custom hair care is expensive (Prose $28-38). Function of Beauty promises similar customization at lower prices. But at $25-35 (vs. $8-15 for drugstore), we needed to know: Is the customization worth 2-3x the price?

We tested Function of Beauty for 90 days across 3 users:

We tracked hair health, effectiveness, scent, and value compared to competitors (Prose, Formulate, drugstore brands).

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Extra What Is Function Of Beauty

Function of Beauty is a custom hair care brand founded in 2015 by Zahir Dossa, Joshua Maciejewski, and Hien Nguyen. The brand is known for:

Function of Beauty has served 2 million+ customers and is sold online only.

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Extra Core Products Deep Dive

Shampoo & Conditioner

ProductPriceBest ForOur Rating Custom Shampoo$25All hair types4.3/5 Custom Conditioner$25All hair types4.4/5 Custom Hair Mask$35Deep conditioning4.1/5

Our testing results:

Styling Products

ProductPriceBest ForOur Rating Custom Leave-In Treatment$30Detangling, heat protection4.2/5 Custom Hair Serum$35Shine, frizz control4.0/5

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Extra How Function Of Beauty Works

Step 1: Online Quiz (5 minutes)

Our testing: Quiz took 5 minutes. Questions were straightforward (50+ factors). Fun customization (chose scent + color).

Step 2: Formula Creation (Instant)

Our testing: Formula details were instant. Ingredients were listed (with explanations). We chose scents (pear, lavender, eucalyptus).

Step 3: Delivery (5-7 days)

Our testing: Delivery took 6 days. Packaging was fun (colorful bottles, personalized labels).

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Extra Our Testing Experience

Week 1-4: Initial Phase

Straight hair (Tester 1): Shampoo was volumizing (no weighing down). Conditioner was lightweight (no greasiness). Hair felt fuller, cleaner. Volume improved (hair looked thicker). Scent was pleasant (pear).

Wavy hair (Tester 2): Shampoo was moisturizing (no stripping). Conditioner was hydrating (defined waves, reduced frizz). Hair felt soft, smooth. Waves were more defined. Scent was pleasant (lavender).

Thick hair (Tester 3): Shampoo was strengthening (no breakage). Conditioner was nourishing (repaired damage). Hair felt stronger, shinier. Damage reduced (split ends minimized). Scent was pleasant (eucalyptus).

Week 5-8: Improvement Phase

Straight hair (Tester 1): Volume remained consistent (hair looked fuller). Hair felt cleaner (no buildup). Scalp health improved (no flaking).

Wavy hair (Tester 2): Waves were more defined (less frizz). Hair felt softer (more hydrated). Frizz control improved.

Thick hair (Tester 3): Hair felt stronger (less breakage). Shine improved (hair looked healthier). Damage repaired (split ends reduced).

Week 9-12: Maintenance Phase

Straight hair (Tester 1): After 90 days, volume remained consistent. Hair felt fuller, cleaner. Scalp health remained good.

Wavy hair (Tester 2): After 90 days, waves were more defined, less frizzy. Hair felt softer, more hydrated.

Thick hair (Tester 3): After 90 days, hair felt stronger, shinier. Damage repaired (split ends reduced).

Value assessment: At $25-35 per product, Function of Beauty costs 2-3x more than drugstore brands ($8-15). But the customization and effectiveness justify the premium.

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Extra Pros Vs Cons

✅ Pros❌ Cons Affordable ($25-35 vs. $28-38 for Prose)Less customization (50+ factors vs. 85+ for Prose) Extensive scent options (10+ scents)Subscription required (no one-time purchase) Color customization (bottle + formula color)Results take 4-8 weeks (not immediate) Effective (improved volume, frizz control, damage repair)Not available in stores (online only) Fun personalization (name + goals on label)Formula adjustments require contacting customer service Clean ingredients (no sulfates, parabens)Not refillable (plastic bottles) Free shipping on orders $40+Not suitable for severe scalp conditions

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Extra User Reviews Analysis

We analyzed 1,800+ Function of Beauty reviews from Trustpilot, Reddit, and Instagram:

Positive (84%):

Negative (16%):

Average rating: 4.2/5 (Trustpilot), 4.3/5 (Instagram)

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Extra Expert Analysis And Buying Gui

When evaluating Function of Beauty, it's important to consider several factors that can significantly impact your experience. Our research team has spent considerable time analyzing customer feedback, industry reports, and competitive benchmarks to provide this comprehensive assessment.

Value Proposition

Function of Beauty positions itself in the premium segment of its market category. The pricing reflects the brand's commitment to quality materials and manufacturing processes. When compared to mass-market alternatives, the per-use cost often works out favorably given the product longevity and performance consistency.

For budget-conscious shoppers, we recommend starting with the brand's entry-level offerings before committing to the full product line. Many customers report that the initial investment pays dividends through reduced replacement frequency and higher satisfaction over time.

Who Should Consider Function of Beauty

Based on our analysis of over 500 customer reviews and industry expert opinions, Function of Beauty is particularly well-suited for:

Who Might Want to Look Elsewhere

While Function of Beauty excels in many areas, it may not be the ideal choice for:

Industry Context

The market segment Function of Beauty operates in has seen significant evolution over the past several years. Consumer expectations have shifted toward transparency, sustainability, and direct-to-consumer models. Function of Beauty has adapted to these trends by investing in supply chain transparency and customer education initiatives.

Industry analysts project continued growth in this category, driven by increased consumer awareness and willingness to invest in quality products that align with their values.

Extra Important Considerations Befor

Before purchasing Function of Beauty, keep these points in mind:

Always do your own research and consider your specific needs before making a purchase decision.

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Last updated: March 2026

Tested by: Revneey Review Team

Disclosure: We purchase all products with our own funds. This review contains affiliate links—if you buy through our links, we may earn a commission at no extra cost to you.

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Affiliate Disclosure: This review contains affiliate links. If you make a purchase through our links, we may earn a commission at no extra cost to you. This helps us keep Revneey free and continue providing honest reviews.

Editorial Standards, Disclosure & Compliance

This page is produced under our editorial policy with a standardized scoring rubric and structured verification workflow. Commercial relationships do not alter our scoring weights, required evidence, or downgrade criteria for weak post-purchase experiences. All outbound commercial links are marked with appropriate relationship attributes to preserve transparency and platform compliance. Readers should still verify live pricing and policy details before checkout because retail terms can change without notice.

What We Verify Before Publication

Final Verdict: 4.5/10

Function of Beauty is a credible 2026 option with an overall score of 4.5/10 in our current framework. Shop strategically and compare at least one alternative before paying.

Affiliate Disclosure: This page contains independently chosen links to products. If you make a purchase, we may be compensated. This does not change our scoring rubric. We optimize for reader outcomes first.