Use Strong for normal, wavy or fine hair and Extra Strong for thick, coarse or very curly hair. Always do a strand test, follow the timing on the pack, and finish with neutralising cream. Aftercare with a nourishing hair mask keeps straightened hair smooth and healthy.
Hair straightening cream changes the structure of the hair, so the right strength and correct process matter. This guide explains how salons choose the cream and carry out the service.
It is a professional chemical service. If you are not trained, we recommend having it done at a salon.
Strong or Extra Strong?
| Hair type | Cream |
|---|---|
| Normal, wavy or fine hair | Diamond Shine Hair Straightening Cream 100ml (Strong) |
| Thick, coarse, curly or resistant hair | Diamond Shine Hair Straightening Cream 500ml ( Extra Strong ) |
| Coloured, highlighted or damaged hair | Consult a professional before any service |
Salons usually stock both strengths in 500ml or 1000ml packs for regular use.
Before you start
- Do a strand test on a small section to check timing and results.
- Do a skin patch test as directed on the pack.
- Wear gloves, and protect the hairline and ears with a barrier cream.
The process, step by step
- Wash the hair gently and dry it completely.
- Section the hair and apply the cream evenly, keeping it slightly away from the scalp.
- Comb through gently and leave it for the time stated on the pack, checking regularly.
- Rinse thoroughly with lukewarm water and blow dry.
- Iron the hair in fine sections.
- Apply neutralising cream, leave it for the recommended time, then rinse.
Why neutraliser matters
The neutraliser fixes the hair in its new straight form. Skipping it or rinsing it early can leave the result uneven and the hair weak. Use the matching Neutralizing Cream Daimond 100ml or the larger salon size.
Aftercare
- Avoid washing, tying or tucking the hair behind the ears for the first few days.
- Use a mild shampoo such as Shills Professional Shampoo.
- Use a nourishing mask once a week. Keratin Professional Hair Mask and Smoothening Professional Hair Mask are popular choices after straightening.
Frequently asked questions
How long does hair straightening last?
The treated hair stays straight until it grows out. New growth at the roots usually needs a touch-up after a few months.
Can I straighten coloured hair?
Coloured or bleached hair is more fragile. Consult a trained professional and always do a strand test first.
Do I need neutraliser after straightening cream?
Yes. Neutraliser sets the new shape. Without it, the result can be uneven and the hair may weaken.
