The only way to make the stain last longer is to apply skin oils or lotions after the staining agent is removed.
There are limitations to these products but they are safe. So enjoy!
Henna has been used to decorate the body for thousands of years.
The art of applying Henna to the skin is called Mehndi; commonly pronounced mendy.
This mixture is put in an applicator bottle
and the Henna is applied to the skin.
There is no needle and it doesn't pierce the skin.   
If you have sensitive skin, please let us know
so we can test the product before the Henna is applied to your skin.
Another way to take Henna off is to peel it off with your hand
over a trash can or out side.
Or you can let it fall off by its self. But that will take a long time.
5. After the henna comes off, put suntan oil or moisturizing lotion on the design.
  
This will help it to last longer.
  
If you swim in a pool or go to a sauna, use Vaseline or Chapstick.  
I have heard that Henna tattoos last 6 months: they don't!
Also, people have told me that Henna is black: it isn't!
~How to Take care~
 If henna is applied late and you want to sleep it's OK to go over night and take the Henna off in the morning.
If it comes off in the bed, just brush it off with your hand in the morning.
  Another thing that sets us apart is we lay-out the design on your body
so you can see it and change it if you want.  
Below is the color Henna normally stains the skin. Keep in mind, everyone's skin is different.
Some people will get a deep brown color. And others may get a yellow or red brown.
If you have done Henna before then you know what to expect.
Henna is a plant grown throughout the middle east,
Asia and northern Africa.
The leaves of the plant are ground into a very fine powder.
We mix it with Eucalyptus oil, lemon juice and sugar.
Here at A Rainbow Studio, we draw every design for you; no stencils.
We have an extensive design library but if you want to bring an original
idea on paper or a cellphone the artist will work with you.
Henna stains the top layer of the skin only.
This is the layer of skin that everyone eventually sheds off.
Because you will loose the top layer of skin naturally,
it is a safe product for everyone including children.
Henna produces a brown stain on the skin that lasts about a week or two.
If it lasts longer, it is very unusual but it will eventually disappear completely.
We offer a safe black all natural plant based product called Jagua.
It stains the first layer of skin only. Like Henna, it normally lasts about a week or two.
Either product will only do what is natural for each individual.
If you have any questions, please go to the contact us page above.
I hope you enjoy your experience here at A Rainbow Studio and feel free to leave a comment.
Take care.                   ~Aloha ~
1.When you approve the design we apply Henna to the skin.
   It looks like wet mud and is raised up on the skin.
2. After it dries in about 30 min., it looks like dry mud and will start to crack .
  We will give you a small package with lemon juice and a cotton ball in it.
3.Take the cotton ball to the top of the package, squeeze it so the lemon juice
   
isn't too much and apply the moist cotton ball to the entire Henna tattoo
   
at least 3 or 4 times, once every 20 to 30 minutes.
Leave the Henna paste on the skin as long as possible; at least 3-4 hrs.
It takes time for the material to stain the skin.
4. If the Henna doesn't fall off by it's self, the next time you get in contact with water it will wash off like mud.
Henna starts off a bright orange color and turns brown in about 24 hours.
Henna works best around the hands and feet because the skin is thickest there.
If you do the design on your hands, try not to scrub with soap when you wash.
Soap dries your skin and that's what you're trying to avoid.
It is easy to remove Henna in a shower or sink.
Try not to rub the area hard to remove the Henna paste.
Instead, gently rub with your hand or just let the water take it off.