Sealing the ends of human hair braiding hair is very important to avoid unraveling and to ensure neatness and longer-lasting style. Different techniques would be required, being that human hair cannot melt unlike synthetic hair. The following are some of the really effective methods.

1. Hair Glue Or Bonding Adhesive
Small amounts of hair bonding glue should, at a point, be put on the ends of the braids. After braiding, put a small drop of glue to the tip and roll with a finger. Allow drying completely before styling.
2. Knotting Ends
A straightforward and natural way by which human braiding hair can be secured is by tying little knots at the ends. That way would best apply to styles like box braids or micro braids. Ensure that it will be tight enough to avoid loosening.
3. Thread Wrapping
The wrapping-up ends with a tiny clear elastic band or thread is another option for style. This wraps it as well, commonly used for bohemian or goddess braids, where a natural finish is needed.
4. Burning With A Lighter (Use Caution)
This may apply to certain braid styles where one simply uses a lighter to lightly burn the ends. Such can be a tricky method as one can quickly harm the hair or leave a fire hazard.
5. Hot Water Sealing
This doesn't really seal human hair the same way, but dipping the ends in hot water allows curls or waves to be set. This works especially well with braided styles and curling at the tips.
Each method has a different final effect, so choose the one that suits the look you're going for and the style of braids you're installing. Proper seals are sure to prolong the life of satin and give it a polished appearance.