It has long been trying to apply the lubricant human , lubricants ( liquid ) most applications in clinical medicine in the early examination of the human body : a lot of medical equipment will be in -depth at different levels of the human body caused by mechanical injury , lubricants You can minimize the body tissue , mucosal damage. Early human lubricant is tribasic lead sulphate glycerin and hydrophilic substance as the main component , was improved by adding glass , sodium ethyl cellulose , Kaposi mother and other ingredients, improved reducing sticky , balance pH , to try and human humoral similar , reducing the probability of occurrence of allergic symptoms .
Lubricants used in human sexuality also has a very long history , but early people used vegetable oils such as olive oil and so on. However, due to limited composition effect is not ideal , easily contaminated clothing , not easy to be absorbed by the body ; Later, people Acrylic processing aid have tried to use Vaseline, baby oil , shower gel, massage oil, petroleum-based mineral oil as a lubricating substance ; these substances are often sticky too large and difficult to clean after use is likely to cause residues, even after use is likely to be blocked by both men and women the urethra , resulting in difficulty urinating pain , and it will destroy the carbon black condom stable , resulting in unwanted pregnancies , which will be on the human body damage ; now on the market are mainly used in the human body lubricant sex lubricating ; human lubricant weak acidic PH value 5-7 , consistent with the vaginal environment , while its viscosity is 1500-2000mpa.s lubricating properties and is the body's secretions are not available , so the lubricant is not only excellent human body secretions supplements , better play secretions can not achieve smooth effect, the colorless , odorless , tasteless , non greasy characteristics , allowing people to fully enjoy the natural sex. While the use of more safe and convenient.
PVC plasticizer
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