The present invention relates to a manufacturing method of a natural cosmetic composition using cotton seeds and solanum nigrum. According to the present invention, the manufacturing method of a natural cosmetic composition using cotton seeds and solanum nigrum comprises: a flame treating step of preparing cotton seeds to dry the cotton seeds, and then flame-treating surfaces of the cotton seeds for 0.5-1 second to remove hair from the surfaces of the cotton seeds； a steaming step of preparing whole plants of solanum nigrum to dry the plants, then inserting the plants into a steamer holding water on a container bottom, and then steaming the whole plants of solanum nigrum to allow water to permeate the whole plants of solanum nigrum； an extraction step of mixing the flame-treated cotton seeds and the whole plants of solanum nigrum which have undergone the steaming step, and then inserting the mixture into an extractor to perform extraction to manufacture extraction liquid； and a heating step of inserting the extraction liquid into a container to heat the extraction liquid to a temperature of 85-90°C to obtain a cosmetic composition. Cotton seeds with excellent moisturizing and relieving effects and solanum nigrum known to have wrinkle alleviation and skin whitening effects are used as materials. A cosmetic composition with minimal side effects from materials in cotton seeds and solanum nigrum and having wrinkle alleviation, skin whitening, moisturizing, and skin softening effects can be manufactured by a simple process.본 발명은 목화씨와 까마중을 이용한 천연 화장료 조성물 제조 방법에 관한 것이다.본 발명의 목화씨와 까마중을 이용한 천연 화장료 조성물 제조 방법은, 목화씨를 준비하여 건조한 후 목화씨 표면을 0.5 ~ 1초 동안 화염 처리하여 목화씨 표면의 털을 제거하는 화염처리단계와； 까마중 전초를 준비하여 건조한 다음 용기 바닥에 물이 담겨진 찜기에 투입한 다음 까마중 전초를 증숙시켜 까마중 전초에 수분이 스며들도록 하는 증숙단계와； 상기 화염 처리된 목화씨와, 증숙단계를 거친 까마중 전초를 혼합한 다음 착즙기에 투입하여 착즙하여 착즙액을 제조하는 착즙단계와； 상기 착즙액을 용기에 넣고 85 ~ 90℃의 온도로 가열하여 화장료 조성물을 수득하는 가열단계；를 포함하여 구성된다.본 발명에 의해, 보습 및 진정 효과가 우수한 목화씨와, 주름 개선 및 미백 효과가 있는 것으로 알려진 까마중을 원료로 하되, 간단한 공
