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Goodbye Flat Goodbye Flat
Triple Action for Fuller,
Fresher Hair
Ingredients Ingredients
Frizz-Defending
Gamma-Docosalactone (acid heat care ingredient)
Clarifying
Seaweed Extract
Ingredients
Volumizing
Keratin Complex

Lineup

Tea & Citrus Scent
Goodbye Flat Volumizing Shampoo

Volumizing Shampoo

400ml
Goodbye Flat Stop Dandruff Shampoo

Stop Dandruff Shampoo

400ml
Goodbye Flat Treatment

Treatment

400ml

Revives Flat Hair From the Roots Up

The Hello, Diane! Goodbye Flat range is designed to breathe life into limp, flat hair by restoring volume, bounce, and root lift.

Infused with hair-strengthening proteins and gentle clarifying agents, it targets common issues like scalp buildup, oiliness, and frizz, leaving hair visibly fuller, lightweight, and effortlessly manageable.

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Flat Hair &
Lifeless Roots
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Oily Scalp &
Product Buildup
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Dry &
Damaged Ends
Power-Packed
Ingredients You’ll Find

In Every Bottle
Colour Safe
Repairing Proteins
Featherlight Botanical Oils
Sulfate-free
Paraben-free
Fights Dandruff.
Calms the Scalp^

Formulated with Salicylic Acid, O-Cymen-5-OL, Bisabolol, and Pea Sprout Extract, this variant targets the root causes of dandruff while calming irritation. Helps restore a clean, balanced scalp environment—leaving it clear, comfortable, and visibly flake-free with every wash.

Goodbye Flat Stop Dandruff Shampoo
*For Stop Dandruff Shampoo Only
*based on a product usage study in Singapore (N=15)
Revives Flat Hair
From the Roots Up

Infused with a powerful blend of Hydrolyzed Keratin, Soy Protein, and Silk Protein, this formula revives limp, flat strands from the roots. Hair feels lightweight, lifted, and naturally bouncy, with volume that holds throughout the day.

*based on a product usage study in Singapore (N=16)
Scalp-Cleansing
Without Overdrying

A balancing blend of Glucosyl Hesperidin, seaweed-derived actives, and gentle surfactants helps to deeply clarify without stripping essential moisture. Leaves your scalp feeling refreshed and breathable, even on non-daily wash days.

Powered by Acid Heat Care
Heat-based Repair

Gamma-Docosalactone transforms heat into a frizz-fighting, damage-repairing treatment for instantly smoother, healthier hair.

Heat-based Repair Illustration

How To Use

1
Use Goodbye Flat Volumizing or Stop Dandruff Shampoo based on your hair type. Apply 1–2 pumps to wet hair, add water to lather, massage through scalp and hair, then rinse thoroughly.
2
After shampoo, apply Goodbye Flat Treatment evenly to wet hair. Leave on for a few minutes, then rinse well.
3
After showering, blow dry your hair to activate the Acid Heat Care Technology.

Lineup

Goodbye Damage Series GOODBYE DAMAGE SERIES View More