After testing many red lipsticks I am yet to find my favourite red color something which will suit most Indian skin tone.What according to you is the best red lipstick shade which suits you the best(Indian olive skin tone)
LipstickÂ is aÂ cosmetic productÂ containingÂ pigments,Â oils,Â waxes, andÂ emollientsÂ that apply color, texture, and protection to theÂ lips. Many varieties of lipstick exist. As with most other types of makeup, lipstick is typically, but not exclusively, worn by women. The use of lipstick dates back to ancient times.
In forensic science, comparative examinations are usually based on the physical or chemical nature of a substance, or both. Lipsticks are composed ofÂ waxes,Â oils,organic dyesÂ andÂ inorganic pigments. Color matching can do identifying the lipstick responsible for leaving a smear. This color analysis may be used to identify the lipstick found at the crime scene. The colors of lipstick are often due to a mixture of several pigment compounds. These pigments can be separated usingÂ thin layer chromatography. Depending on the type of pigment, theÂ mobile phaseÂ will vary. Lipsticks are soluble inÂ toluene, so toluene serves as the mobile phase. After separation, theÂ chromatogramÂ is complete and illustrates the different pigments that make up a particular color of lipstick.
Traces of Lipsticks,Â cosmetics,Â nail polish, or other smears could be found left on drinking cups, glasses,Â cigarette butts, and tissue papers and may all be significant forensic evidence in the investigation of a crime, especially in cases such as a sexual assault or aÂ homicide. This physical evidence may be found on clothing, parts of the body, a tissue, or cigarette. By comparing the composition of a lipstick smear with that of a victim, forensic scientists can demonstrate indirect proof of contact or a relationship between victim and suspect. Also, it is sometimes possible to extract saliva DNA from the print and may link a suspect to a crime scene. Various methods of forensic lipstick analysis were reported. Small amount of lipstick (approximately 10 Î¼g) could lead to good comparisons inÂ TLC.
Thin Layer Chromatography (TLC) is a widely used chromatography technique used to separate chemical compounds. Thin-layer chromatography incorporates a solidstationary phaseÂ and a moving liquid phase to cause a separation of the constituents of a mixture. Although simple test may be run by simply allowing a solvent to pick up a piece of porous paper, a more revealing test requires the preparation of a plate. Because most compounds are colorless, no separation will be noticed after development unless the materials are visualized.Â This is may be done by: â€¢ Exposing to UV light â€¢ Exposing to fluorescent dyes â€¢ Exposing to iodine â€¢ Spraying with a reagent
You might like reading these also:-
- Miss Claire Professional Eyeshadow Palette 06 Review & Swatches
- Under Eye Gel -Fab India Aloe Vera Under Eye Gel Review
- NYX Round Lipstick Pumpkin Pie Photos & Swatches
- Lâ€™oreal Hair Spa Nourishing Cream Bath â€“ Review