Onion & Rosemary Keratin Smoothing Kit: Stronger & Straighter

If you struggle with frizz, volume, or unmanageable hair, this keratin straightening kit delivers long-lasting smoothness and shine.

Formulated with keratin and enriched with onion, rosemary, and biotin, it helps improve hair texture while reducing frizz and enhancing manageability.

Designed for at-home use, it allows you to achieve salon-quality straight hair without formaldehyde.

Long-Lasting Straight Hair
Provides straight, smooth hair for up to 4–6 months with proper care.

Frizz Elimination & Humidity Control
Seals the hair cuticle, reducing frizz and improving texture.

Repair & Strength with Keratin
Keratin helps restore damaged hair, improving softness and resilience.

Infused with Onion, Rosemary & Biotin
Supports stronger, healthier-looking hair while enhancing shine.

Salon Results at Home
Designed for easy at-home application with professional results.

1. Wash your hair with Natural Sant Onion, Rosemary, and Biotin Shampoo once or twice until clean and free of oil, without using conditioner.
2. Blow-dry your hair until it is 90% dry.
3. Separate your hair into sections using a flat clip and apply Natural Sant Onion, Rosemary, and Biotin Keratin to each section.
4. Leave on for 40 minutes to 1 hour.
5. Begin straightening your hair from roots to ends, at least 6 times, focusing on areas with the most unwanted waves. Make sure to use a flat iron that provides the appropriate heat to enhance the product's properties. A temperature of 450°F or 230°C is recommended.
6. After ironing, you can remove the treatment with shampoo and an onion, rosemary, and biotin treatment. We recommend removing it the same day.
7. Finally, blow-dry your hair.

Recommendations:
1. Continue using the ONION, ROSEMARY, AND BIOTIN TREATMENT for maintenance after each shampoo in small amounts.
2. Hair should not have been bleached for less than 2 weeks. If it hasn't been bleached for two weeks yet, it is recommended to deeply condition the hair in the days leading up to the application.
3. Continue blow-drying the hair for at least 1 week after application.
4. If you wish to apply hair dye, do so after 3 washes.
5. Not recommended for pregnant women or women breastfeeding for less than 6 months.
6. Keratin is for ages 14 and up.

Water, Cetrimonium Chloride (and) Cetyl Alcohol (and) Stearyl Alcohol, Glyoxylic acid (and) water (and) pentylene glycol, Hidrolyzed Keratin, White mineral oil, Dimethiconol (and) TEA-dodecylbenzenesulfonate, Cyclopentasiloxane, Fragrance, Phenoxyethanol – Ethylhexylglycerin, Silk Extract (and) Pentylene Glycol, Sodium PCA, Allium cepa extract, Rosmarinus officinalis extract, Biotin, Collagen, citric acid and color.

Delivery time in the United States usually takes
3 to 7 business days

Shipping costs range from $7 to $15, depending on the weight of your package and your exact location.