The Greenhouse Effect (GHE) For Increased Hair Growth – Newsletter 16th September 2012

In This Issue:

  • The Greenhouse Effect (GHE) For Increased Hair Growth
  • Latest Articles on Black Hair Information
  • Hot Products

The Greenhouse Effect (GHE) For Increased Hair Growth

Beautiful textures products
What It Is

The greenhouse effect (GHE) is something that some of you may have come across in your hair journeys. It is a method that is used to stimulate and increase hair growth particularly if your growth is naturally slow.

Since it was first described, the method has remained a huge hit in forums for black andwhite hair alike. The method involves covering your hair with a plastic cap after moisturizing and sealing in order to create a ‘steam’ effect on your scalp overnight.

How It Works

The idea behind this method is that by creating warmth and moisture on your scalp, you are also creating the perfect environment to open pores and follicles and get that growth going. You could also give yourself a quick scalp massage before covering your hair for the night to enhance the growth effect.

How To Do The Greenhouse Effect

  1. Using a spray bottle spray your hair with water until very slightly damp.
  2. Apply oil to your hair (avoid getting too much oil on the scalp to prevent clogged pores).
  3. Tie your hair up into a lose bun at the top of your head and secure.
  4. Cover your hair with either a plastic cap if you can find one big enough or a plastic grocery bag will work pretty well too.
  5. Cover the plastic bag with your scarf or bonnet making sure that everything is secure for the night.
  6. In the morning allow up to 20 minutes for your hair to dry or else use a blow dryer on a cool setting to get rid of the excess moisture.
  7. Style your hair as usual.


The oil is optional, you can do the GHE with just plain water if you wish. It’s also worth mentioning that you can do the GHE with weaves or braids in which case use water only to prevent build up.

If you would like to use oil, try using growth promoting ones like MTG oil (smells a bit though!), Rosemary oilpeppermint oil or Basil oil. You may also want to include an anti-fungal oil likeTea Tree oil to prevent any infections in the warm moist environment that you are creating!

How Often To Do The GHE

If you are using oil it may not be a good idea to do the GHE every night because of the build up potential. A better routine would be every other night or 3 times per week so that you can wash your hair at the weekend. You could GHE on Monday, Wednesday and Friday nights then wash your hair as usual either on Saturday or Sunday. Of course if you are using plain water you can GHE nightly.

What To Expect

In the long term both relaxed and natural ladies should expect an increase in hair growth rate, up to double in some people. In the short term natural ladies will be left with soft shiny hydrated coils and curls while relaxed ladies will be left with soft hair that will look a bit poofy reminiscent of air dried hair. You will also have a very hydrated scalp.

Naturally you shouldn’t do the GHE if your hair is straightened!

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15 Ways To Get Longer Healthier Hair


About Alma

Hi! I'm Alma Ruddock, a full time blogger. I stumbled on a hair care forum in 2008 frustrated with my breaking relaxed hair and the information that I found there changed the fate of my hair forever!. I started as a way to help both myself and other women of color achieve their dreams of long healthy hair. I have now achieved my goal length and I continue to bring new information about hair on both this website and my personal blog.

  • Shell

    I heard about this some time back but I forgot to try it. Will be starting tonight.

  • Choco

    Can you use green tea in the spray bottle instead?

    • Alma

      No reason why not, you just need a source of moisture so green tea would be fine.

  • Latoya

    can i use black tea in a spray bottle?

    • Alma

      You can but I would be careful because black tea has way too much caffein and it may stunt your growth. Green tea is a better option.

      • Latoya

        Thanks Alma i will give the green tea a try then. I am going to relax my hair next week Tuesday, how soon after can i start the GHE?

        • Alma

          Hi Latoya, you can start as soon as you like, it’s not something that is likely to affect the relaxer!

  • .• ιтѕ мє_¢нιиα •.

    Hey , I was just wondering if the GHE would work on twa’s

    • Alma

      Absolutely! Your hair will shrink up tho!

  • Harriet

    Can i use my normal castor oil?

    • Alma

      Absolutely Harriet.

  • Lunye Ladybug Fowler

    Hi, I am new to transitioning with sl hair. I have about 3″ of natural hair and the rest is relaxed. I tried the GHE last night. I put coconut oil in my damp hair, wrapped with plastic and put my scarf on. This morning the only hair that seemed to be damp was the relaxed ends. My new growth was not. I will try again tonight, but wondering if I did something wrong?

    • Alma

      No you didn’t do anything wrong. Relaxed hair tends to get ‘wetter’, for lack of a better term, than natural hair so it’s not fair to compare the two. Trust me your natural hair got damp too but because of it’s thick spongyness, it may not have felt that way.

      • Abby

        Sorry, this is a year later but for those just reading like me, I do it in the day time after work by putting on the shower cap and covering it with a black gym scarf and working out. After the gym I leave it on for a few more hours until bed time. Usually this can be about 5 – 6 hours. :)

  • Hina

    Hi Alma,
    I got a haircut recently and to my dismay the hairdresser chopped 4-5 inches of my hair. I want to grow my hair back! I was thinking of doing the GHE method on my hair, but I can’t sleep with a plastic cap. Would this method still work if I did the same thing in the daylight?
    Thank you!

    • Alma

      Wow, sorry about that. You can certainly do it during the day although I can’t imagine why you would want to walk around with a plastic cap on your head during the day! :)

      • Hina

        Thank you! I will definitely give it a try. :)

        • Abby

          Hmm this posted in the wrong spot. I meant to post it here but can’t delete..
          “Sorry, this is a year later but for those just reading like me, I do it in the day time after work by putting on the shower cap and covering it with a black gym scarf and working out. After the gym I leave it on for a few more hours until bed time. Usually this can be about 5 – 6 hours.”

  • sharvesha wooden

    hello i was thinking can this help get your perm out of your hair faster

    • Alma

      Yes if it works for you then it will let you chop off your processed hair earlier.

      • Nikki

        Mrs. Alma I have a sew in weave and I wanna do the ghe but you know I don’t really like to mess with washing it its a journey lol but I also don’t want like my hair that’s under to poof up what do I do? :(

  • Adriene Fields

    Add me to ur mailing list please.

  • Abby

    Great post Alma!

  • Christopher

    So how long do you exactly have to have all the caps and stuff on your head. I know it’s overnight, but is there a “perfect time” in hours for how long?