FAQ

Cosimo Luma is the next-generation UV-bond hair extension system created for professional stylists who want speed, safety, and flawless results. This FAQ will guide you through everything you need to know—from application and safety, to care, removal, and reordering supplies. Whether you’re new to the system or perfecting your craft, you’ll find all the key answers here.


Q: What is Cosimo Luma?

Cosimo Luma is a professional UV-bond hair extension system that uses light-activated adhesive for a fast, secure, and seamless application. It is designed for stylists who want a modern extension method that is safe, versatile, and long-lasting.


Q: How long do Cosimo Luma extensions last?

With proper application and care, Cosimo Luma bonds typically last 4–8 weeks. They grow out naturally with the client’s hair and can be refreshed during a salon visit.


Q: How long does the LED lamp last?

The Cosimo Luma curing lamp lasts up to 30,000 hours of use — equal to about 20,000 client applications or nearly 10 years of professional service.


Q: Is Cosimo Luma safe?

Yes. The system is engineered for professional use and tested to meet strict safety standards. When used correctly, it is both safe and effective for clients of all hair types.


Q: Will the client feel heat during bonding?

No. The LED lamp produces minimal heat. Clients may feel a gentle warmth but never discomfort.


Q: Will the light harm my eyes?

No. The curing lamp includes a protective shield. Simply avoid staring directly into the light during use.


Q: What’s in the Cosimo Luma glue?

The adhesive formula contains Ethyl cyanoacrylate, Sodium stearate, and a Photoinitiator, which cures instantly under LED/UV light to form an invisible, secure bond.


Q: Is the glue safe?

Yes, when handled professionally. However:


  • It can bond skin instantly.
  • May irritate the respiratory tract.
  • Always use in a well-ventilated space.
  • Keep away from children and eyes.



Q: Who should not use Cosimo Luma?

Avoid use on clients with:


  • Open wounds, scars, or abrasions on the scalp.
  • Skin conditions (psoriasis, dermatitis, fungal infections, herpes, sunburn).
  • Cancer, infectious, or inflammatory skin conditions.
  • Epilepsy or photosensitivity.
  • Clients on photosensitizing medications.
  • Hemophilia, chemotherapy, or radiation treatment.
  • Pregnancy or breastfeeding (unless cleared by a doctor).



Q: How do I store the glue?

Keep upright, in a cool, dry place, away from sunlight and heat. Do not refrigerate.


Q: What is the shelf life of the glue?


  • Unopened: up to 1 year
  • Opened: up to 6 months



Q: Do I need to shake the glue before use?

Yes. Shake for at least 30 seconds before each use to ensure proper mixing.


Q: How many installs can one bottle of glue provide?

One bottle can complete up to 3 full extension applications, depending on the client’s hair density and the amount of hair used.


Q: Is Cosimo Luma compatible with all hair types?

Yes. It works with all natural hair extension systems including wefts, keratin tips, tape-ins, and nano rings.


Q: Can clients style their hair with heat tools after application?

Yes. Hair can be blow-dried, curled, and straightened as usual. The only rule is to avoid direct heat on the bonds.


Q: How do I remove Cosimo Luma extensions?

Use the official Remover Solution and Removal Tool included in the kit. The remover gently breaks down the bond for safe and fast removal. A step-by-step guide is provided with purchase.


Q: How can I learn to use the system?

Every Cosimo Luma Kit comes with:


  • Digital Master Class access
  • Professional tutorials and safety guidelines
  • Ongoing support from the Cosimo Beauty team

 

Q: How do I order more supplies?

Additional adhesive, tools, and accessories can be ordered directly from the Cosimo Beauty website to ensure authenticity and product quality.


Q: How can I stay updated on new products and promotions?

Sign up for the Cosimo Beauty Newsletter to receive exclusive offers, product updates, and discounts.