The cream used to brighten up the skin and fades freckles of the face is called whitening cream. Mercury is the active ingredient that is commonly used in face whitening cream. The use of hazardous substances in cosmetics namely mercury. Irritation, nervous disorders, itching, until skin cancers are the result of the use of mercury in whitening cream. This research aims to find out whether there is mercury or not by qualitative test in whitening cream which is unregistered by Badan Pengawas Obat dan Makanan (BPOM) in Tulungagung. The type of this research is descriptive research. The number of whitening cream samples which is unregistered by Badan Pengawas Obat dan Makanan (BPOM) Tulungagung as many as six samples. Colour test used 0.5 N KI solution is a qualitative test of mercury. Results of the study with a qualitative analysis show that all negative samples contain mercury.

Hyperglycemia due to abnormal insulin secretion, insulin work or both. Type 2 Diabetes Mellitus is the most among other types of diabetes mellitus. Diabetes mellitus is usually accompanied by dyslipidemia. Dyslipidemia is a disorder of lipid metabolism or cholesterol characterized by an increase or decrease in lipid fraction in the plasma. Diabetes mellitus and elevated Low-Density Lipoprotein (LDL) cholesterol levels are often found to be interrelated. The purpose of this study was to describe Low-Density Lipoprotein (LDL) levels in patients with type 2 diabetes mellitus. The research design used was descriptive non-analytic. The population in this study were all patients with type 2 diabetes mellitus using a purposive sampling technique of 30 samples. Data collection was carried out by observing the medical record data of type 2 diabetes mellitus patients with Low-Density Lipoprotein (LDL) profile data for 2017. The results showed that patients with type 2 Diabetes Mellitus suffered the most by male sex with a percentage of 57%, aged over 45 years with a percentage of 97%, and having high LDL levels as much as 40%.

Hemoglobin is the main component of red blood cells, a conjugated protein that functions to transport oxygen and carbon dioxide. Hemoglobin examination can be done using a hematology analyzer and spectrophotometry. This study aims to determine the data analysis whether there is a difference in hemoglobin levels using a hematology analyzer and spectrophotometry in pregnant women. The method used is Literature Review; the nature of this research is descriptive. The population of this research is health journals that have been through screening, namely journals of differences in hemoglobin levels using a hematology analyzer and spectrophotometry in pregnant women. In this study, the data used are secondary data and data analysis using qualitative data. The results of the evaluation of the study by the Literature Review with hemoglobin levels in pregnant women at Hermina Hospital, Surakarta, showed that the average hemoglobin level of 30 samples of pregnant women using a hematology analyzer was below normal, namely 10.3 gr/dL and normal hemoglobin level is 12.80 gr/dL. The hemoglobin level using spectrophotometry and hematology analyzer on the sample was immediately checked, the results of the hemoglobin levels were 12.98 gr/dL and 11.70 g/dL, respectively. The hemoglobin level showed that the average hemoglobin before being given Fe-Folate with orange water was 11.71 g/dL. The conclusion of this study is the difference in hemoglobin levels is not much different, so there is no difference between the spectrophotometry and the hematology analyzer

Orange has high levels of Vitamin C. The most frequently consumed orange is tangerine. People usually consume fresh oranges and juice. This study aimed to determine the difference in Vitamin C content in fresh tangerine and tangerine juice. The research design used was experimental. Population in this study area includes all citrus fruits sold in the Ngemplak Tulungagung market. The sample was obtained by using the purposive sampling technique. The data obtained are fresh tangerine has a content of Vitamin C as much as 26,4% and tangerine juice as much as 7,2%, then data is processed with the software SPSS 16 and analyzed by Independent T-test. Result of Independent T-test is obtained P-value = 0.001 < α = 0.05.Based on the result of the Independent T-test, it can be concluded that H0 is rejected, so there is a difference in Vitamin C content in fresh tangerine and tangerine juice on an Iodometric basis.

Milk is a food that has complete and perfect nutrition. The main product produced by dairy cows is livestock. In Tulungagung there are several dairy farming areas, including the Pabyongan hamlet. The purpose of this study was to analyze the reduction test using methylene blue 1% in fresh milk in the dairy farmer group of Pabyongan Tulungagung hamlet. This research is a qualitative descriptive design with the Simple Random Sampling technique. The results of this study indicate that from a total of 10 fresh milk samples, it is known that 9 fresh milk samples (90%) have a good reduction test and 1 fresh milk sample (10%) has a bad reduction test. Based on the results of the above research, it can be stated that 90% of the fresh milk samples from the dairy farmer group in Pabyongan Pagerwojo village have a good reduction test. Poor reduction test results are due to the condition of the cage is not clean, the condition of the animal being sick, the condition of the farmer being sick, or the equipment is not clean.