A Brazilian keratin treatment in Singapore costs between S$150 and over S$500. You spend three hours in a chair. You get four to six months of frizz-free, glossy hair. Worth it? Sometimes. But here’s what salons don’t advertise — and how spending less than S$40 at home can get you most of the way there.
What a salon keratin treatment actually does
A salon keratin treatment coats the hair shaft with keratin-based smoothing agents, then flat-irons them in at ~230°C to seal the proteins. Frizz gone, hair glossy, humidity-defiant — for 4 to 6 months. Then it fades.
The tradeoffs:
- Formaldehyde-based formulas are still the industry standard for the longest-lasting results. Singapore salons increasingly offer formaldehyde-free versions — they’re gentler but don’t last as long.
- Three-plus hours per appointment.
- No washing for 72 hours afterwards, in most cases.
- S$150–S$500 per session, 2–3× a year.
What an at-home keratin mask can do
An at-home keratin treatment won’t chemically straighten your hair. What a good one will do:
- Fill in gaps in the cuticle with hydrolysed keratin so hair feels smoother.
- Use polypeptide bond-repair actives to rebuild broken disulphide bonds from bleach, heat and colour.
- Seal moisture in so humidity can’t lift the cuticle and create frizz.
- Reduce tangling, add shine, make styling faster.
Rehues Daily Colour Lock™ Keratin Repair Mask does all four — and with our intense steam hack (below), you can mimic the salon’s heat activation at home.

Side-by-side comparison
|
Metric |
Salon Keratin |
Rehues Keratin Repair Mask |
|
Cost per treatment |
S$150–S$500 |
<S$40 (lasts ~1 month) |
|
Time per session |
3+ hours |
10 min (or 15 min with towel steam) |
|
Frizz reduction |
80–95% |
40–70% |
|
Duration of effect |
4–6 months |
Cumulative with weekly use |
|
Formaldehyde risk |
Depends on formula |
None |
|
Hair styling restrictions |
No wash 72 hrs, no ponytails |
None |
|
Can use on colour-treated hair |
Yes, but can fade pigment |
Yes — safe with Rehues Colour Lock Shampoo |
|
Money-back guarantee |
Rare |
7-day no-results refund |
The “salon in your shower” hack
Here’s how to get the closest at-home experience to a salon keratin treatment — for less than the cost of one Grab ride to the salon:
- Cleanse hair with Rehues Colour Lock™ Shampoo (any shade, or neutral). Rinse.
- Scoop a generous amount of Rehues Keratin Repair Mask and work through mid-lengths to ends. Comb through.
- Heat a towel in a microwave (~30 seconds) or run under hot water. Wring out.
- Wrap hair in the hot towel. Pop on a shower cap over. Leave 10–15 minutes. This creates the steam activation that mimics salon heat.
- Remove, rinse cool, air-dry or blow-dry.
- Mist Rehues Collagen Elixir Spray to seal.
Do this once a week and you’ll see a compounding difference in frizz control, shine and strand strength over 4 weeks.
When to still go to the salon
We’ll be honest. A salon keratin is the right answer if:
- You need your hair to lie pin-straight without blow-drying.
- You’re going to a wedding / big shoot / event in 48 hours and want guaranteed straight hair.
- Your hair is so thick and coarse that home treatments feel underpowered.
For everything else — humidity frizz, dullness, bleach damage, post-colour breakage — a weekly at-home keratin mask beats a once-a-year salon trip on value, safety and compound results.
Our 7-day money-back promise
We’re that confident. Try Rehues Keratin Repair Mask for a full week. If your hair doesn’t feel smoother, softer and stronger, email us and we’ll refund your order. No photos needed, no questions asked.
Try it for yourself: Rehues Daily Colour Lock™ Keratin Repair Mask.
Next read: The 5-Minute Humidity-Proof Hair Routine • “My Hair Feels Like Straw” — 7-Minute Steam Rescue

