FAQs Eyelash Care
Frequently Asked Questions
Q: What makes Bilberse different from other lash serums?
Bilberse is 100% PG-Free (no prostaglandins or prostaglandin analogues). Most lash serums on the market use these synthetic hormones to force lash growth — but they come with serious side effects like eye irritation, iris darkening, and periorbital fat loss. Bilberse uses a clinically validated peptide complex to nourish and strengthen lashes naturally, with zero compromise on safety.
Q: Is Bilberse safe for sensitive eyes?
Yes. Bilberse is formulated without prostaglandins, parabens, sulfates, or artificial fragrances. Our formula has been dermatologist-tested and is suitable for sensitive eyes and contact lens wearers. As with any new product, we recommend a patch test before first use.
Q: How long does it take to see results?
Most users notice visible improvement within 4–6 weeks of consistent daily use. Full results — including increased length, thickness, and density — are typically seen at the 8–12 week mark. In our clinical study, 94% of participants reported visible improvement by week 12.
Q: How do I apply Bilberse correctly?
Apply once nightly to clean, dry skin along the upper lash line — just like you would apply eyeliner. One thin stroke per eye is all you need. Avoid getting the product directly into your eyes. Do not apply to the lower lash line.
Q: Can I use Bilberse with eyelash extensions?
Yes, Bilberse is safe to use with lash extensions. In fact, it helps strengthen your natural lashes underneath, which can improve extension retention and reduce breakage when extensions are removed.
Q: Will my lashes fall out if I stop using Bilberse?
Unlike prostaglandin-based serums that artificially extend the lash growth cycle, Bilberse works by nourishing the hair follicle. When you stop using it, your lashes will gradually return to their natural cycle — they won't fall out suddenly. To maintain results, we recommend continued use.
Q: Can I wear mascara or eye makeup while using Bilberse?
Absolutely. Apply Bilberse at night as the last step in your skincare routine. In the morning, you can apply mascara and eye makeup as usual. Make sure to fully remove all makeup before your next application.
Q: I have dark circles around my eyes. Will Bilberse make them worse?
No. Periorbital darkening (dark circles caused by lash serums) is a known side effect of prostaglandin-based products. Since Bilberse contains zero prostaglandins, this side effect does not apply to our formula.
Q: How much product should I use per application?
Very little. One thin stroke along the upper lash line per eye is sufficient. Using more product does not accelerate results and may cause unnecessary waste. One bottle of Bilberse lasts approximately 3 months with daily use.
Q: Is Bilberse vegan and cruelty-free?
Yes. Bilberse is 100% vegan and cruelty-free. We never test on animals, and our formula contains no animal-derived ingredients.
Q: Can I use Bilberse on my eyebrows?
Bilberse is formulated specifically for eyelashes. While some customers do apply it to sparse eyebrow areas, we recommend consulting with a dermatologist before doing so, as the skin around the brow area may respond differently.
Q: What if I experience irritation?
Discontinue use immediately and rinse the area with clean water. If irritation persists, consult a healthcare professional. While Bilberse is formulated for sensitive skin, individual reactions can vary. Please review the full ingredient list before use if you have known allergies.