There are no search results that provide information about a product called "Smooth Diamond Lotion." However, there are some search results that provide information about different types of lotions, their ingredients, and their positive and negative aspects. Here is a summary of the information found in the search results:

• Lotions can contain potentially harmful chemicals and toxins that can be absorbed by the skin.
• Some lotions are formulated to treat specific skin conditions, such as keratosis pilaris and ingrown hairs.
• Lactic acid and allantoin are ingredients that can help dissolve cornifications and reduce pore size.
• Ceramides can reduce skin inflammation and enhance the skins barrier to protect it from environmental stressors.
• Glycerin and hyaluronic acid can provide intensive moisture to the skin.
• Emollients, humectants, occlusives, pH adjusters, preservatives, and solvents are common types of ingredients found in lotions.
• Fragrances can be added to lotions, but they can also be a source of skin irritation.
• Lanolin oil and dimethicone are examples of occlusive ingredients that can help lock in moisture.
• Alcohol denat. and DMDM hydantoin are examples of preservatives that can be irritating to the skin.
• Sodium hydroxide is an example of a pH adjuster that can be used to balance the pH of a lotion.

In conclusion, while there is no information about a product called "Smooth Diamond Lotion," there are some general insights about lotions and their ingredients that can be helpful when choosing a lotion. It is important to read the ingredient list carefully and be aware of any potential irritants or toxins. Additionally, choosing a lotion that is formulated to treat a specific skin condition can be beneficial.