How much you know about hair extensions? As us know the hair extensions are a wonderful way of providing instant length, fullness, and shine to your own hair. The first thing you must consider before delving into extensions is if your hair is healthy enough to be able to support the hair extensions. If your hair is dry, brittle, or breaking, your hair will definitely not fare well with handling the additional stress imposed on your hair by Hair Extensions, no matter what some of these Hair Extension companies say. So, please be honest with yourself, and take the proper steps to get your hair back to health before you pursue this further. You will save yourself a lot of grief , and hair loss, and will thank me later! Lets know the types of hair extensions now. 
Keratin tipped Fusion Extension
The method of attachments: Strand by Strand, Weft, and Clip in.
Cold Fusion – Basically identical to Warm Fusion but the keratin bond is not warmed, but rather ultrasonic waves melt the Keratin to form the bond during installation. Cold Fusion as with Warm Fusion, bonds are removed with a special solvent, and tool.
Micro-Link Extension method
Warm Fusion - A small amount of Keratin, or other organic material is pre-attached or utilized on the ends of a strand. The extension strands are then attached to small sections of your hair near the scalp by warming the Keratin and forming a small bond to your hair. The site of attachment is so, that the extensions can move naturally with your own hair. These extensions last 3 – 6 months or more, and should be removed or redone at that time.
Weft Hair Extensions
Flat-Taped Weft Extensions
A weft is a track several inches long on which the hair is attached (a swathe of hair is attached together at the top and freely hanging at the bottom). A weft can be man-made or created by machine. The extensions are then applied by using one row (track) at the time instead of strand by strand. Methods of attachment of Wefts consists of Micro Rings, Tape, Glue , and sewing to your hair.
Micro-Rings – A weft is located on a divided section of the client’s hair. Two strands (one from the scalp and another from the weft) are joined and pulled through a micro ring, which is then flattened. This way the weft is attached by fitting together several strands both from the weft and the scalp.
Taped Hair extensions – also called skin weft, is a relatively newer technique. Hair is held together by double transparent sided polyurethane tape. One piece of the tape is torn off and the weft is applied the scalp. The weft and the attached hair is pulled upwards and another weft is attached underneath. That way the client’s hair section is surrounded by two wefts.
Braided Weft
Clip in hair extensions - are the shortest term temporary solution in which you use on a day to day basis, and remove them before retiring for the evening. Some clip on extensions come with human remy hair.
Remember: If you are interested in getting Hair extensions, recommended practice would be to check your local Salons and see what attachment methods they specialize in.
Resource: Image Credit(Clip in hair extensions).
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