
Diane Perfect Beauty Extra Straight Treatment Refill
Argan-oil hair treatment refill that smooths frizz-prone, wavy hair for a soft, straight-looking finish.
- From JapanJP-Direct
- AuthenticVerified
- 10–14 daysDelivery
Smooths cuticles and tames frizz for soft, straight-looking hair that stays manageable even in humid weather.
About this product
Moist Diane Perfect Beauty Extra Straight Treatment is formulated for wavy, curl-prone hair that puffs up and frizzes in humidity. Its cuticle keratin and organic argan oil blend smooths the cuticle layer from within, guiding hair toward a soft, sleek, straight-looking finish without weighing it down. This 330mL pouch is the value-size refill for the Extra Straight Treatment pump bottle.
How to use
- After shampooing, gently squeeze out excess water from hair.
- Apply an appropriate amount from mid-lengths to ends, avoiding the scalp, and comb through gently.
- Leave on for 1-2 minutes, then rinse thoroughly with lukewarm water.
- To refill, pour into an empty Extra Straight Treatment pump bottle.
Ingredients
- Organic Argan Oil — deeply moisturizes and adds softness to dry, frizz-prone hair.
- Cuticle Keratin (Hydrolyzed Keratin) — smooths uneven cuticle layers for a flatter, glossier hair surface.
- Organic Baobab, Sapote, Quinoa & Prune Seed Oils — nourish strands from root to tip and help lock in moisture.
- Ceramides (EOP, NG, NP, AG, AP) — reinforce the hair's internal moisture barrier to resist humidity-related frizz.
FAQ
Is this the treatment or the shampoo?
This is the treatment (conditioner) refill pouch, meant to refill an existing Extra Straight Treatment pump bottle — pair it with the Extra Straight Shampoo for full routine results.
Is it silicone-free?
Yes, the Extra Straight line is formulated without silicone and without harsh sulfates like sodium laureth sulfate.
Will this permanently straighten curly hair?
No — it's a smoothing hair treatment, not a chemical straightening service. It conditions the cuticle to reduce frizz and puffiness for a smoother, straighter-looking finish that washes out.
🇺🇸 For US customers
A favorite pickup for anyone exploring J-beauty haircare beyond Korean brands, Moist Diane is one of Japan's best-selling drugstore hair care lines, prized in r/AsianBeauty circles for its spa-like, perfume-grade scent and rich argan-oil formulas. The Extra Straight Treatment brings salon-smoothing cuticle keratin to your at-home routine at a fraction of prestige haircare prices.