I found several search results related to shaving products, but none of them specifically mention a product called "shave master." Therefore, I cannot provide a review of this products details, positive or negative aspects, or its ingredients or materials. However, I can provide some general information about shaving products based on the search results:

• Shaving soaps are a traditional product that remains popular among wet shavers who appreciate having more control over their shaving regimen. Quality shaving soaps are made with quality ingredients mixed in the correct proportions.
• Safety razors are a popular choice for those looking for a sustainable, plastic-free option. They provide a gentle, close, and smooth shave.
• Wet shaving with an electric razor is also an option, and some shaving creams are particularly well-suited to be used with electric shavers.
• The EWG Skin Deep Cosmetics Database provides information on the safety of ingredients in personal care products, including shaving products.

Overall, when choosing a shaving product, it is important to consider factors such as the quality of ingredients, ease of use, and post-shave feel. It is also important to consider any potential safety concerns associated with the products ingredients.