Our Rating: 4 stars

For just over three weeks, I have been testing three eyelash and eyebrow growth products by Code.ai that combined come to $230. This is not inexpensive (!), so did they work? The short answer is yes. In fact, rather well. The long answer (well you know me by now) is that I customized how I used the products (which I think made them work better) and quickly cut out using one of them altogether. Before I get into all that, here are the basic facts.

First off, it is good to know that Code.ai works and it does not include the potentially harmful active, prostaglandin, that you’ll find in Latisse or Lilash, for example. The big guns in the formula are myristoyl pentapeptide-16 and 17. Code.ai is not the first to hone in on them,  Marini Lash , which works well enough, also has myristoyl pentapeptide-17 (but not 16 as well). And you’ll also find 17 in Tarte Mutlipleyes.

The Lash Extend Serum ($115 in the shop) has this peptide at a 30% concentration. If you were to only buy one of the three products, this is the one to buy. I ended up using it on my eyebrows along with the Brow Boosting Shaper Gel ($75 in the shop), which also has the peptides – although the concentration is not mentioned. I found that the Brow gel didn’t do all that much on its own. In combination, however, the results are really impressive: my test eyebrow looks really great. In fact, even though the test is over, I will keep on using the serum and brow gel.

The results for lashes were less impressive. Nonetheless, my lashes are most definitely longer. They are not darker (a result with some eyelash products, particularly those with prostaglandins) as a result of using Code.ai. Naturally, my lashes are dark for about two-thirds of their length and then they are much lighter. Both my lashes and brow hairs feel stronger, but soft and flexible.

I gave up on the Lash Extend Primer ($40 in the shop) after about a week. This is not a growth product as such but is supposed to protect the lashes from damage from mascara and other onslaughts with botanical extracts and heavy duty moisturizers. It is almost like a mascara itself with a brown tint. I found that it clumped a bit and smudged (usually as a result of me forgetting I had it on and rubbing my eyes or attempting a walk in a cold wind).

I would recommend the lash serum and, if you have an eyebrow issue and are flush enough, it is worth getting the brow serum as well. The primer largely depends on whether you need to put a protective layer between you and your regular mascara, or want to use it as a lightweight mascara-type product that likely has more nourishing ingredients than your regular mascara. If, like me, you are not much of a mascara user then it might seem a little redundant.

Ingredients in serum

Aqua, glycerin, licorice root extract, hydrolized wheat protein, allantoin, panthenol, pentylene glycol, ethylhexylglycerin, myristoyl pentapeptide-16, myristoyl pentapeptide-17, hyaluronic acid, panthenyl ethyl ether, acrylates C10-30, alkyl acryates copolymer,triethanolamine, diethanolamine, phenoxyethanol.

Ingredients in lash primer

Water (Aqua), Beeswax, Butylene Glycol, Sucrose Polystearate, Copernicia Cerifera Wax (Carnauba), Acrylates Copolymer, Hydrolyzed Wheat Protein, Stearic Acid, Sericin, Methylsilanol Acetyltyrosine, Tribehenin, Behenyl Alcohol, Polysrobate 80, Glycine Soja Seed Extract (Soybean), Elaeis Guineensis Fruit Extract (Palm), Oryza Sativa Extract (Rice), Limanthes Alba Seed Oil (Meadowfoam), Sodium Hyaluronate, Tocopheryl Acetate, Squalane, Ceramide 2, Sorbitan Sesquioleate, Panthenol, Sodium Levulinate, Magnesium Aluminum Silicate, Hydroxyethylcellulose, PVP, PEG 32, Cellulose, O Cymen 5 OL, 1,2 Hexanediol, Caprylyl Glycol, Triethanolamine, Disodium EDTA, Sodium Benzoate, Sodium Dehydroacetate, Phenoxyethanol, May Contain (+/-): Iron Oxide (CI 77491, CI 77492, CI 77499)

Ingredients in brow booster

Aqua, glycerin, licorice root extract, hydrolized wheat protein, panthenol, pentylene glycol, ethylhexylglycerin, myristoyl pentapeptide-16, myristoyl pentapeptide-17, hyaluronic acid, panthenyl ethyl ether, acrylates C10-30, alkyl acryates copolyemer, PEG-8, PEG-8/SMDI copolymer, palmitoyl myrtistyl serinate, sodium polyacrylate, methacrylic acid sodium, acrylamidomethyl propane sulfonate copolymer, triethanolamine, diethanolamine, phenoxyethanol.