With just one product, you can transform barely-there brows and lashes in as little as a four weeks. In fact, 96 percent of users said their lashes felt fuller and more lush, 93 percent saw visibly more defined brows, and a stunning 100 percent had zero irritation.

The formula is packed with heavy-hitters that do so much. Biotin helps your body make keratin, which is essentially the protein your brows and lashes are built from. Red Winter Algae gets in there to stimulate the cells responsible for hair growth and improve density.

At the same time, fatty acid-rich castor oil nourishes the hair follicles, supporting longer and thicker growth over time. With roselle and safflower extracts included to protect from oxidative stress, your lashes and brows will be less prone to shedding over time.

Moisture is key during this revitalizing period, too, which is why Augustinus Bader incorporated a hyaluronic acid complex that deeply hydrates each hair shaft and maintains strength.

All of this is powered by Augustinus Bader's signature TFC8® technology and is completely free of prostaglandins, which is a huge deal if you've ever had concerns about some of the more aggressive formulas on the market.

The applicator deserves some love, too. It's a 25-micro bristle tool made from pharma-grade synthetic material, and it has absolutely no metal, glue, or irritating fibers.

It picks up just the right amount of product and delivers it precisely where you want it, even along the root of your lash line. This makes it easy for anyone to apply the Eyebrow and Lash Enhancing Serum, making it completely foolproof.

The reviews speak for themselves, with many users reporting incredible results. 'After only a short while I noticed a difference,' one person raved. 'My eyebrows are now thicker and fuller.'

'This product is so gentle, yet so effective,' said another. 'My lashes are growing longer and fuller without the dry-eye effect I have experienced with other lash-lengthening products.'

A third dubbed it a 'miracle serum,' adding that it made their lashes considerably 'fuller and healthier in just three weeks. I use the serum at bedtime, it does not irritate my eyes, and the results are very impressive.'

The Augustinus Bader Eyebrow and Lash Enhancing Serum is a must if you're looking for something that's light, effective, and quick to work. Shop it here.