Ingredients and safety

What is in the bottle

3 ml of Beautech lash serum, applied once a day along the upper lash line. Four ingredients do the work:

  • Peptide complex — a conditioning base for the lash root.
  • Biotin — for lash hair under stress, from extensions, a lift, or day-to-day wear.
  • Panthenol — keeps lashes supple rather than brittle.
  • Hyaluronic acid — light hydration, without a greasy film.

The full INCI list is printed on the carton.

How to use it safely

Cleanse the lash line and let it dry completely before applying. Draw one thin line along the upper lash line, in the evening, and do not rinse it off — it absorbs overnight. One application a day is the full dose; more product does not work faster.

Do a patch test on the inside of your forearm before the first application, and wait 24 hours. If you notice redness, burning or irritation at any point, stop using the serum. If it does not settle, speak to a doctor or pharmacist. There is a longer explanation of what a patch test checks for, and how to do one properly, in the Journal.

Apply with contact lenses out, and let the serum absorb before putting them back in. If any product reaches the eye itself, rinse with water.

We do not have data on use during pregnancy or breastfeeding, so we do not recommend it during either. Ask your doctor or midwife if you would like to use it anyway.

If you wear lash extensions, check with the technician who applied them before starting — some adhesives do not get along with an oil-free serum at the lash line.

Cleansing matters more than most people expect, because the lash line has to be clean and dry before the serum goes on. Taking eye make-up off without pulling on your lashes covers how.

Patience, not promises

Lashes follow their own cycle, and that cycle runs in weeks, not days. Give the serum a full twelve-week course — one bottle — before judging the result. We would rather say that plainly than promise you a number we cannot stand behind.

Twelve weeks is longer than most routines survive, and that is a practical problem rather than a question of willpower. What actually holds a nightly step in place.

Storage

Keep the bottle upright, at room temperature, out of direct sunlight, with the cap closed. Keep it out of reach of children, and do not share the applicator with anyone else. Why each of those matters.

Still unsure

The questions page answers the practical ones — how long a bottle lasts, brows, contact lenses, what to do about a reaction. Anything it does not cover, write to us and a person will answer within one business day.

Patch test first: apply a little to your inner arm, wait 24 hours, and start tonight if there is no redness

The nine, up close.

  • Macro close-up of peptide complex, an ingredient of Beautech lash serum

    Myristoyl Pentapeptide-17, Acetyl Tetrapeptide-3, Oligopeptide-10

  • Macro close-up of biotin + biotinoyl tripeptide-1, an ingredient of Beautech lash serum

    Biotin + Biotinoyl Tripeptide-1

  • Macro close-up of panthenol, an ingredient of Beautech lash serum

    Panthenol (Pro-Vitamin B5)

  • Macro close-up of hyaluronic acid, an ingredient of Beautech lash serum

    Hyaluronic Acid (Sodium Hyaluronate)

  • Macro close-up of vitamin E, an ingredient of Beautech lash serum

    Vitamin E (Tocopherol)

  • Macro close-up of saw palmetto fruit extract, an ingredient of Beautech lash serum

    Saw Palmetto Fruit Extract (Serenoa Serrulata)

  • Macro close-up of pumpkin seed extract, an ingredient of Beautech lash serum

    Pumpkin Seed Extract (Cucurbita Pepo)

  • Macro close-up of Panax ginseng extract, an ingredient of Beautech lash serum

    Panax Ginseng Extract

  • Macro close-up of Swertia japonica extract, an ingredient of Beautech lash serum

    Swertia Japonica Extract