Here's a way to get a respectable dose of protein with relatively litte effort. Keep that low-frizz wave and curl definition going strong.
Do-It-Yourself Protein Additive for Conditioner©Science-y Hair Blog 2013
Mix up this gelatine base (instructions below):
1 packet Knox Unflavored gelatine (or any unflavored gelatin 0.25 oz, 7.25 g or 2 1/2 teaspoons)
1/2 cup distilled water
©Science-y Hair Blog 2013
Mix the gelatine and water (room temperature water) and then pop it in the microwave for about 30 seconds - or heat the water to boiling and then add it to the gelatine. Cool until cool enough to touch.
Now - refrigerate this mixture. This is 6% protein.
To use the gelatine - scoop out an equal amount of gelatine mixture as you will use conditioner. If you use 2 teaspoons conditioner (please measure your conditioner to be certain), then use 2 teaspoons of gelatine. Soften the gelatine by heating it slightly (until it liquefies) and mix with the conditioner.
Now you have a 3% protein conditioner. Apply it to your hair as you usually apply conditioner. Leave it on for at least a minute or two before rinsing.
If this is too much protein for your hair (your hair becomes too stiff or overly soft after using it), try using 2 parts conditioner for each 1 part gelatine mixture. For example, 2 teaspoons conditioner and 1 teaspoon gelatine mixture.
I suppose you could add 1/2 cup conditioner to the gelatine after it has cooled a bit, but before it sets, but be careful when you heat the product so it doesn't separate.
©Science-y Hair Blog 2013
More Protein, More!
If you like this, but want it to be stronger in the protein department, then make the gelatine base with only 1/4 cup water and proceed - your conditioner will now be a whopping 6% protein.
Good luck!
If your hair begins to be too soft, too stiff or limp then knock it off and go back to whatever you were doing.