The Lumin Skin Co. Keratin Strengthening Conditioner is a compact yet powerful product, according to Jacinda's video review. Despite its small size, she found that the conditioner was quickly depleted due to her thick and long hair. The main claims of the product are to provide moisture and strengthen the hair. However, Jacinda admitted that she didn't notice any significant difference in her hair after using it. Nevertheless, she was pleased to try it out as keratin is known to be beneficial for hair health. Additionally, she didn't find any concerning ingredients in the conditioner. Overall, while the Lumin Skin Co. Keratin Strengthening Conditioner may not have delivered noticeable results for Jacinda, it still offers the potential benefits of keratin without any apparent drawbacks.