What’s the Difference? Hair Treatment vs. Premium Straight vs. Japanese Straightening

BIGAMI Treatment vs. Premium Straight vs. usual Straightening

Easy guide – understand it in 3 minutes‼️

Do you have problems like these?

• Hair gets frizzy in humidity

• Hair becomes wavy or puffy

• No shine, hard to manage

• Styling in the morning doesn’t last

In Bangkok’s climate, these are very common concerns.

One of the questions we hear most often is:

“What’s the difference between a treatment and straightening?”

Choosing the wrong option can lead to results that don’t match your expectations.

Here’s a simple guide to help you understand the differences.

BIGAMI Treatment vs. Premium Straight vs. usual Straightening

The Simplest Way to Understand the Difference

The main difference is the finish.

  • BIGAMI Hair Treatment

→ Reduces frizz and adds shine

  • Premium Straight

→ Smooth, natural-looking straight hair

  • Alkaline normal Straight 

→ Very straight, strong result

Think of it like this:

BIGAMI Treatment

PREMIUM straight

ALKALINE straight

BIGAMI Treatment (Smooth & Shine)

Features

• Reduces frizz and dryness

• Adds shine

• Very low damage

This service improves texture and manageability, but it does not completely straighten strong curls.

Duration

About 2–3 months

Price

Short – 2,800B

Bob – 3,000B

Medium – 3,200B

Medium-long – 3,500B

Long – 3,800B+

Recommended for

• Mild frizz or dryness

• Hair that feels rough or puffy

• Those who want a natural finish

Premium Straight MOST POPULER‼️

Features

• Straightens hair naturally

• Soft, flexible texture

• Beautiful shine

This is our most popular menu because the result looks natural and feels soft.

Duration

About 2–6 months

Benefits

• Hair can still be curled

• Natural look as it grows

• Not stiff or flat

Recommended for

• Wavy or frizzy hair

• People who want a natural straight look

• Those who dislike stiff straightening

Price varies depending on hair length, volume, and history. We will advise during consultation.

Alkaline Straight 

Features

• Strong straightening power

• Effective even for strong curls

• Resistant to humidity

Duration

Straightened parts remain straight permanently (only new growth needs retouching).

Considerations

• Can feel firmer than Premium Straight

• Harder to curl

Recommended for

• Strong curly or very voluminous hair

• Those who want a very straight finish

Safe, High-Quality Products

All straightening and treatment services use high-quality professional products made in Japan, selected for their safety, consistency, and hair-friendly formulations.

We carefully choose the formula based on your hair condition to minimize damage and achieve the best result.

Which One Should You Choose?

As a simple guide:

If you only want to reduce frizz

→ Hair Treatment

If you want natural straight hair

→ Premium Straight

If you want very straight hair

→ Japanese Straightening

However, the best choice depends on:

• Hair damage level

• Coloring or bleaching history

• Strength of curl

• Hair thickness

Professional assessment is important for the best result.

Each difference

Not Sure? Free LINE Consultation Available

If you’re unsure which menu is right for you:

You can send us a photo of your hair on LINE, and we will recommend the best option for your hair type and history.

You can ask about:

• Prices

• Whether your hair condition is suitable

• Which menu is best

Consultation only is perfectly fine.

[Official LINE – Click here]

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