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K18 Hair

All orders will be processed and shipped within 2-3 business days after your order is placed. Our business hours are Monday through Friday from 9am-5pm PST. If you place an order on a Friday, your order will ship by Tuesday the following week, given Monday is not a holiday.

All orders will be processed and shipped within 2-3 business days after your order is placed. Our business hours are Monday through Friday from 9am-5pm PST. If you place an order on a Friday, your order will ship by Tuesday the following week, given

How quickly can you ship my items?

Shipping & Returns

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

What are the K18 mask ingredients?

How does the K18 mask work?

Is the K18 mask a bond builder?

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?

leave-in molecular repair hair mask

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 AirWash™?

How do I use this product?

How much product should I apply?

How often can I apply this product?

How many applications do I get per bottle?

Can I use this on wet hair?

How does this fit into the K18 routine?

Do I have to wait 4 minutes after applying AirWash™?

Does this work well with other styling products?

Can I use this every day?

Can I apply to clean, dry hair after styling to keep my style longer lasting?

Will this cause buildup or white cast?

Does this leave behind residue or stickiness?

Can I use too much AirWash™?

Why does my hair feel gritty or powdery?

Will this dry out my hair and scalp?

Will AirWash™ clog my scalp’s pores?

How quickly does this absorb oil and odor?

Does my hair have to be dirty to use AirWash™?

Does AirWash™ work for all hair types and colors?

Is this a styling product?

I have a sensitive scalp, is this product for me?

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

Does this product contain sulfates, parabens, or phthalates?

Does this contain any heat protectant?

Is this an aerosol product?

Why do I have to shake it well?

Is this safe to use on extensions?

Will this weigh my hair down?

What does it smell like?

This product applies wet, will it disturb my style?

Does AirWash™ contain the K18PEPTIDE™?

What is odorBIND™?

How does this absorb oil differently from traditional products?

Is this product considered clean?

Is this product vegan?

Is this product cruelty-free?

Does this product repair hair?

Is this product plastic net-zero?

Is this gluten-free?

What is the pH of this product?

Why doesn’t this product disturb style?

How quickly does this product dry?

AirWash™ dry shampoo

What is the PEPTIDE PREP™ detox shampoo?

What does it do?

When do I use the detox shampoo?

What makes the detox shampoo special?

How does the detox shampoo work?

Will the detox shampoo dry my hair out?

Will the detox shampoo strip color?

How do I use the detox shampoo?

How much shampoo should I use when I wash my hair?

Can I still use my normal shampoo?

What does the K18PEPTIDE™ in the shampoo do?

If the shampoo is formulated with the K18PEPTIDE™, why should I use K18 molecular repair mask or oil?

What does the detox shampoos smell like?

What are the detox shampoo ingredients?

PEPTIDE PREP™ detox shampoo

How does this conditioner fight daily damage?

Can I use the conditioner instead of the mask?

Can the K18 conditioner repair damage like the mask does?

Can I use the K18 conditioner before the mask?

Can I apply the K18 mask first, then the K18 conditioner?

Can I apply the K18 conditioner first, then the K18 mask?

Is K18 conditioner considered clean?

How much K18 conditioner should I use?

Where should I apply the K18 conditioner?

How do I use K18 conditioner with the mask?

Can I mix the K18 conditioner with the mask?

Can I mix the K18 conditioner with the oil?

Do I have to wait 4 minutes after applying the conditioner?

Can heat make the K18 conditioner more effective?

Does the K18 conditioner contain the K18PEPTIDE™?

Can I use the K18 conditioner every day?

Will the K18 conditioner cause buildup on hair?

Will the K18 conditioner weigh hair down?

Is the K18 conditioner recommended for all hair types?

Does the K18 conditioner work on curly and/or coily hair?

DAMAGE SHIELD protective conditioner

What is DAMAGE SHIELD?

Is the formula of the DAMAGE SHIELD pH protective shampoo different from the PEPTIDE PREP™ pH maintenance shampoo?

How quickly can you ship my items?Updated 2 years ago