Have you noticed unexpected shedding or thinning after using Function of Beauty products? If you’re wondering Does Function of Beauty Cause hair loss, you’re not alone.
This customizable hair care brand has sparked concern across TikTok and Reddit, with users sharing stories of breakage and scalp issues.
In this post, we’ll uncover the truth behind these claims, explain potential causes, and guide you through expert-backed recovery steps so you can make informed decisions for your hair’s health.
What Is “Function of Beauty” and How Does It Work?

Function of Beauty is a personalized hair care brand that allows users to build custom shampoo, conditioner, and treatments based on their unique hair goals, type, and concerns.
Custom Formulation Process:
- Users take a quiz to determine their formula, choosing options like hydration, curl definition, anti-frizz, and more.
- They can add “boosters” for targeted effects (e.g., lengthen, strengthen, volumize).
- Products are shipped with your name printed on the bottle—appealing, but is it effective?
Common Ingredients & Boosters:
- Base formulas often contain ingredients like fermented rice water, coconut-derived surfactants, fragrance, and essential oils.
- Boosters may include biotin, keratin, silicone alternatives, or even vitamins like E and C.
While customization feels luxurious, some ingredients may not suit everyone, and that’s where the trouble can begin.
Reports of Hair Loss After Using the Function of Beauty
Concerns about the Function of Beauty hair loss began surfacing around 2020, when users started sharing stories of excessive shedding, scalp sensitivity, and even bald patches.
Social Media Complaints & Reddit Threads
- Multiple TikTok creators posted videos with captions like “Function of Beauty ruined my hair.”
- Reddit forums include posts detailing breakage, dryness, and “clumps falling out” after several weeks of use.
- Many noticed symptoms appeared within 2–4 weeks of switching to the product.
Brand Response & Safety Protocols
In response, Function of Beauty stated their formulations are rigorously tested for safety and comply with FDA and EU cosmetic regulations. They denied any systemic issue, suggesting users may be reacting to specific ingredients or combinations.
Possible Mechanisms Behind Reported Hair Loss
Not everyone will experience hair loss with Function of Beauty, but if you are, several factors might explain why:
Ingredient-Related Irritation, Scalp Inflammation, and Buildup
- Essential oils, fragrance, and preservatives may irritate sensitive scalps.
- Improperly balanced pH or surfactants can strip natural oils, leading to brittle strands and inflammation.
- Silicone substitutes and boosters may cause buildup, clog follicles over time.
Incompatibility of Boosters or Base Formulas
- Overloading hair with protein-rich boosters (e.g., biotin, keratin) can lead to protein overload, making hair stiff and prone to breakage.
- Mixing too many goals—like “volumize” + “hydrate” + “lengthen”—may create contradictory effects that stress hair structure.
Disruption to Hair Cycle Phases (Telogen Effluvium)
- Sudden product change or scalp irritation can push hair follicles prematurely into the telogen (shedding) phase.
- This form of temporary hair loss often resolves once the irritant is removed.
Expert Insights on Hair Loss Prevention & Root Causes
According to dermatologists, hair loss linked to hair care products is rarely due to one ingredient—it’s often a combination of stressors.
- Fragrance and preservatives (like methylisothiazolinone) are top culprits for allergic reactions.
- Vitamin overload in boosters can upset the scalp microbiome.
- Sulfates, though absent in Function of Beauty, are often replaced by harsh coconut-derived alternatives that may still irritate.
How to Assess If Your Hair Loss Is Related to the Function of Beauty
To know if your shedding is product-related, watch for these signs:
Timeline Correlation
- Did hair loss begin within 2–4 weeks of starting the Function of Beauty?
- Is hair loss localized (e.g., temple, crown) or diffuse?
Shampoo/Conditioner Specific Triggers
- Do you feel itching, burning, or tightness after use?
- Do strands feel drier or more tangled post-wash?
Rule Out Other Causes:
- Stress, diet changes, hormonal shifts, or medications (e.g., birth control, antidepressants) can trigger similar shedding.
- Blood tests (iron, thyroid, and vitamin D) may reveal underlying deficiencies.
Recovery Options and Next Steps
If you suspect Function of Beauty caused your hair loss, here’s what you can do:
Step 1: Discontinue Use Immediately
- Switch to a gentle, fragrance-free shampoo and conditioner.
- Examples: Vanicream, Free & Clear, or baby shampoo.
Step 2: Scalp Care & Repair
- Use soothing scalp serums (e.g., niacinamide, panthenol).
- Limit heat styling and brushing.
Step 3: Nutritional Support
- Take hair-supportive supplements containing biotin, zinc, iron, and probiotics.
- Eat a protein-rich, anti-inflammatory diet.
Step 4: Consider Medical Treatments
- Minoxidil (topical) may stimulate regrowth.
- PRP therapy or microneedling can be offered by dermatologists.

How to Choose Hair Products Safely
Look for:
- Dermatologist-tested, hypoallergenic labels
- Simple formulations with fewer than 10 ingredients
- Products with clinical testing or transparency
Always:
- Patch test behind the ear or on the inner arm before full use
- Track reactions in a journal
- Consult with a trichologist or board-certified dermatologist for persistent issues
Frequently Asked Questions (FAQ)
Does everyone experience hair loss from the Function of Beauty?
No. Most users do not experience problems, but sensitive individuals may react to specific ingredients or combinations.
How long until hair recovers after stopping the product?
Hair loss typically stabilizes within 2–4 weeks, with regrowth starting around 6–12 weeks.
Are the functions of Beauty boosters safe?
They’re generally safe for most users, but layering multiple boosters can overstimulate the scalp or imbalance your hair.
Can hair fully regrow?
In most cases of telogen effluvium, yes, especially with proper care and nutritional support.
Take Your Next Step
If you’re struggling with unexplained hair shedding or suspect Function of Beauty hair loss, don’t wait. Book a consultation with Dr. Rana Irfan, Islamabad’s ABHRS-certified hair restoration specialist, for a personalized scalp evaluation, advanced diagnostics, and medically guided recovery plan.