Aminah is a successful entrepreneur, and she has several businesses around Malaysia. Then, she decided to extend her core business by venturing into a business that produces cosmetic products. Therefore, she collaborates with Alif to produce and manufacture cosmetic products. As per the collaboration, Aminah has the right to determine the material used in cosmetic products. However, Aminah needed help with the most suitable material for cosmetic products. One day, Aminah met a well-known cosmetic entrepreneur, Datin Aimi, who has been in the cosmetic industry for almost 24 years. She also owned a chemical company known as Aimi's Chemical Sdn. Bhd Datin Aimi assured Aimi that the best material for cosmetic products is Hydroquinone. Moreover, she also warranted that Hydroquinone is a suitable material for many type of cosmetic products. Since Datin Aimi's explanation convinced Aminah, she instructed Alif to buy the material from Datin Aimi's chemical company and apply it to her cosmetic products. As a result, Aminah manufactured her newest cosmetic products, and there are many customers have already bought Aminah's latest cosmetic products. Unfortunately, most customers suffered severe skin damage after using the said cosmetic products. Later, Aminah found out that the pharmaceutical regulator has banned the material Hydroquinone in any cosmetic products. Therefore, Aminah had to spend a substantial amount of money to rectify the problem, where she must use other materials approved by the pharmaceutical regulator and applied to her cosmetic products. Advise Aminah on the legal status of the assurance made by Datin Aimi. the question is based on Contract Law Malaysia