Flip presents the Refill - Part Brow Liner in Mocha gel color by Trestique, as reviewed by Aqua. Aqua, a non-professional makeup artist, shares their thoughts on this product. While acknowledging its quality, Aqua states that it is not suitable for their personal preferences. The brow refill gel is described as a good product, but Aqua does not find it suitable for their needs. Unfortunately, the specific reasons for this dissatisfaction are not mentioned in the transcription. Overall, the Refill - Part Brow Liner in Mocha gel color by Trestique appears to be a decent product, but potential buyers should consider their own preferences and needs before purchasing.