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Please log in to the consumer portal at withflex.com/portal using the same email you used at checkout to download all the documents needed for the product you purchased. If you still need help, please email support@withflex.com and let them know the

I did not receive an itemized receipt and/or Letter of Medical Necessity from Flex. What should I do?

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Paying with HSA/FSA

What is the K18 leave-in molecular repair hair mask?

What are the K18 mask ingredients?

How does the K18 mask work?

Why should I use the K18 mask?

Will the K18 mask work for my hair?

Does the leave-in molecular repair mask need to be emulsified or activated?

How do I use the K18 mask?

How often do I use the K18 mask?

How much K18 mask do I use?

Can I use the K18 mask every day?

Can I use my K18 mask on day 2 hair?

Why skip conditioner?

Does K18 mask replace conditioner?

Why do I use K18 mask on towel-dried hair?

Can I mix the K18 mask with other styling products?

Can I apply styling products or conditioner before the mask's 4-minute wait time is up?

Will the K18 mask work on hair with a lot of buildup?

Why does the K18 mask have to sit for 4 minutes?

If the K18 mask doesn’t rinse out, why do I have to keep using it?

I'm not seeing results, or my hair feels dry, frizzy, and crunchy after using K18. What should I do?

Will the K18 mask weigh my hair down?

Is K18 considered a protein?

Why is there alcohol in the formula?

What if I have a wheat allergy?

Is K18 safe to use during pregnancy?

When should I expect to see results?

Does the K18 mask offer UV or heat protection?

What does the K18 mask smell like?

Is the molecular repair mask good for curly or wavy hair?

leave-in molecular repair hair mask

What is FutureIQ™ biomimetic hair longevity serum?

How does FutureIQ™ biomimetic hair longevity serum work?

How is FutureIQ™ biomimetic hair longevity serum different from traditional anti-gray and hair growth serums?

Is FutureIQ™ suitable for everyone?

What is the proprietary MultiVital™ technology?

How does FutureIQ™ hair longevity serum reduce premature shedding, graying + scalp aging?

How do I use FutureIQ™ hair longevity serum?

Can this be used on a wet or dry scalp? Will there be a difference in results?

Can I still use it if I haven’t washed my hair today?

When will I start seeing results?

What results will I see if I have thin hair?

What results will I see if I have gray hair?

What results will I see if my hair isn’t dense to start with?

How long does a FutureIQ™ hair longevity serum bottle last?

Can this be used on eyebrows or eyelashes?

Would this work on a beard?

What if I miss a few days?

After I see the results, should I continue to use FutureIQ™ hair longevity serum?

Can I use this product if I am under 18?

Can FutureIQ™ hair longevity serum reverse and repigment white hair?

What can I expect if I have more than 30% gray hair?

Will FutureIQ™ hair longevity serum make my hair oily?

Is there a best time to apply FutureIQ™ hair longevity serum?

Does FutureIQ™ hair longevity serum need to be washed out?

Will my grays return if I stop using FutureIQ™ hair longevity serum?

I have extensions. Can I still use FutureIQ™ hair longevity serum?

Will steaming the hair with FutureIQ™ hair longevity serum affect the results?

What should I do if I start experiencing irritation?

Are there tangible and clinical results/differences after 3 months?

Should I use FutureIQ™ hair longevity serum sleeping with my hair up or down?

Why do I need to use FutureIQ™ hair longevity serum every day?

How long does FutureIQ™ hair longevity serum take to dry?

Will FutureIQ™ hair longevity serum mess up a blowout?

How does FutureIQ™ hair longevity serum fit into my K18 routine?

Can I use FutureIQ™ hair longevity serum after I use the K18 mask?

Can I use FutureIQ™ hair longevity serum after AirWash™?

What causes premature hair aging?

What causes shedding?

What causes graying?

How does stress negatively impact the hair growth cycle?

Why does the scalp age faster than the rest of the skin?

Are there areas of the world that see less hair loss?

What is the fragrance?

Does FutureIQ™ hair longevity serum contain sulfates, parabens, or phthalates?

Is FutureIQ™ hair longevity serum a clean product?

Is FutureIQ™ hair longevity serum cruelty-free and vegan?

Is FutureIQ™ hair longevity serum gluten-free?

Is FutureIQ™ hair longevity serum safe for a sensitive scalp?

How do I store my product?

Does FutureIQ™ hair longevity serum have heat protection?No, FutureIQ™ serum does not have heat protection. We recommend K18 HeatBounce conditioning heat protectant.

Does FutureIQ™ hair longevity serum have UV protection?

What is the pH level of FutureIQ™ hair longevity serum?

Is FutureIQ™ hair longevity serum safe to use with other over-the-counter (OTC) hair loss products?

Will this work on my postpartum hair loss?

Can FutureIQ™ hair longevity serum help with thinning due to medical conditions?

Will this work for someone going through cancer treatment?

Will this work even if I don’t wash my hair every day?

Will this work on men?

How does this work with stress-related hair shedding?

Can you use this while pregnant or breastfeeding?

Do you have to stop coloring hair for it to work?

Is it more effective if applied with massage?

Do I apply FutureIQ™ before or after my Rogaine?

Will FutureIQ™ and Rogaine cancel each other out?

I'm on oral minoxidil. Is it safe to also use FutureIQ™ on my scalp?

Is FutureIQ™ basically the same thing as Rogaine, just fancier? What's actually different?

I've been using minoxidil for a year and it's helped with shedding, but I'm still going gray. Will FutureIQ™ help with that part?

I just started Rogaine and I know there's an initial shed phase. If I start FutureIQ™ at the same time, how will I know which product is doing what?

Can FutureIQ™ replace Rogaine eventually, or are they doing completely different things?

FutureIQ™ Biomimetic Hair Longevity Serum

What is the molecular repair hair oil?

What does the molecular repair hair oil do?

How does the molecular repair hair oil fight frizz?

Does the molecular repair hair oil provide heat protection?

What oils are in this formula?

Does the molecular repair hair oil include the K18PEPTIDE™?

Can I use the oil on damp or dry hair?

Do I need frizzy hair to use the oil?

Does the molecular repair hair oil work on all hair types?

How do I apply this oil?

How do I use the oil with the K18 mask?

Do I need to wait 4 minutes after applying the oil?

Can I use the molecular repair hair oil on its own?

Can I use the molecular repair hair oil on keratin-treated hair?

Can I use this oil on extensions?

Can I use the molecular repair hair oil instead of the mask?

How do the molecular repair hair mask and oil work together?

Will the mask block the molecular repair hair oil from penetrating?

Can I mix the oil and mask together?

Can I use the oil immediately after the mask?

Can I do an overnight treatment with the molecular repair hair oil?

Is it better to use the full K18 routine?

Can I use this oil every day?

Will the molecular repair hair oil leave buildup or weigh down my hair?

Is the molecular repair hair oil vegan?

What does the oil smell like?

Is this molecular repair hair oil silicone-free?

Is this oil gluten-free?

Does this oil contain sulfates, parabens, or phthalates?

What are the molecular repair hair oil ingredients?

molecular repair hair oil

What is HeatBounce conditioning heat protectant?

What does HeatBounce do?

How does HeatBounce work?

Is there a professional size?

Does HeatBounce repair hair damage?

How does HeatBounce protect against heat?

What heat temperature does HeatBounce protect against?

Why does heat protection need to go so deep?

Does HeatBounce work on the inside and outside?

How does HeatBounce condition hair?

Does HeatBounce condition towel-dried and dry hair?

How is HeatBounce lightweight and conditioning?

Does HeatBounce detangle hair?

Does HeatBounce make hair easier to manage?

How do I use HeatBounce?

Where do I apply HeatBounce?

Is HeatBounce an aerosol product?

How much HeatBounce should I apply?

How often can I reapply HeatBounce?

Can I reapply HeatBounce every day?

How many applications do I get per bottle?

Is HeatBounce activated by heat (curling irons, flat irons, etc)

Can I use too much HeatBounce?

When do I use HeatBounce in my routine?

Is HeatBounce a styling product?

Can I use HeatBounce as a conditioning leave-in without heat?

Do I still need to apply a leave-in conditioner after HeatBounce?

Does HeatBounce protect against fading color or color shift?

How does HeatBounce protect against color shift and color fade?

Do I need to use HeatBounce on towel-dried and dried hair?

Will resilicore™ heat-shielding technology repel moisture to help maintain style?

Is the K18PEPTIDE™ in HeatBounce?

What does HeatBounce smell like?

What is resilicore™ heat-shielding technology?

Is HeatBounce safe for color-treated or chemically serviced hair?

Does HeatBounce contain sulfates, parabens, or phthalates?

Is HeatBounce a clean product?

Is HeatBounce cruelty-free and vegan?

Is HeatBounce plastic net-zero?

How is HeatBounce different from traditional heat protectants?

Do I have to wait for HeatBounce to activate before using heat?

Does HeatBounce work on all hair types?

Can I use HeatBounce on towel-dried hair?

Can I use HeatBounce on dry hair?

Can I use HeatBounce on wet hair?

What’s the difference between molecular repair hair oil and HeatBounce?

If the molecular repair hair oil already protects from heat, why do I need HeatBounce?

I did not receive an itemized receipt and/or Letter of Medical Necessity from Flex. What should I do?Updated 10 days ago