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OSMO Straighten Up hair-straightening spray with keratin, 250 ml
O65059
1-4
€26.20
Tax included
A keratin-containing spray that helps maintain a smooth, straight style and protect hair from heat during styling. Spray onto damp hair before blow-drying and finish with a straightener.
OSMO Straighten Up is a keratin-containing hair-straightening spray designed for use with a blow-dryer and hair straightener. It helps keep hair looking straight and smooth for longer, protects against heat during styling and helps reduce moisture loss while styling.
Smoother hair and heat protection: key benefits
- Helps maintain a straight, smooth hairstyle for longer.
- Contains hydrolysed keratin to support hair care during styling.
- Designed for use with a blow-dryer and hair straightener.
- Helps protect hair from the heat of styling tools.
- The spray format allows even application to each section.
Why choose this product?
Straighten Up is not a permanent chemical straightening treatment. It is a heat-activated styling spray: apply it to damp hair, blow-dry with a large round brush and then use a straightener. It is particularly useful when wavy or curly hair is being styled into a straighter look.
Key ingredients and what they do
- Hydrolyzed Keratin: hydrolysed keratin that supports hair care during styling.
- Silicone Quaternium-22 and Silicone Quaternium-18: conditioning silicone compounds that help improve smoothness.
- Quaternium-80 and Quaternium-91: conditioning ingredients that help create a more manageable hair surface.
- Cetyl Alcohol: helps the formula spread evenly and contributes softness.
Directions for use
- Step 1. Divide damp hair into sections and spray the product evenly over each section.
- Step 2. Comb through to distribute the spray, then blow-dry with a large round brush.
- Step 3. Finish by using a straightener section by section to reinforce the straightening effect.
How to combine with other OSMO products
- Step 1. Before styling, wash with an OSMO shampoo and conditioner suited to your hair condition; choose Deep Moisture for dry hair.
- Step 2. Apply Straighten Up to towel-dried hair, then use a blow-dryer and straightener.
- Step 3. If humidity is the main concern, use OSMO Guardian Angel according to its directions. Assess combining both products according to the hair’s needs.
Technical information
- Brand: OSMO
- Product type: straightening hair spray
- Pack size: 250 ml
- EAN / GTIN: 5035832136097
Product story
Creating a smooth style begins with preparation, not only with the straightener. Straighten Up is designed for this process: spray it onto damp hair, distribute it section by section and use it with a blow-dryer and straightener. This sequence helps achieve a smoother, more even finish.
OSMO’s professional range is designed for different needs, from cleansing and conditioning to creating shape, volume and smoothness. Straighten Up fits this approach as a targeted product for straightening. Its keratin-containing formula combines styling with care and heat protection.
Choose this spray when ordinary blow-drying is not enough to achieve the desired smooth look. Working in small sections helps distribute the product evenly and style more precisely. Unlike a firm-hold gel, this spray is intended for a smoother, straighter and more polished result.
Who is this product for?
- Straightening hair with a blow-dryer and hair straightener.
- Creating smoother, more even hairstyles.
- Hair styling where heat protection is important.
Frequently asked questions
Is Straighten Up a chemical hair straightener?
No. It is a styling product used with a blow-dryer and hair straightener.
Should the spray be applied to dry hair?
Apply it to damp hair, then blow-dry and style with a straightener.
Does the product contain keratin?
Yes. It contains hydrolysed keratin.
INCI (ingredient list)
Aqua (Water), Alcohol Denat. (Alcohol), Quaternium-80, Silicone Quaternium-22, Silicone Quaternium-18, Cetrimonium Methosulfate, Behentrimonium Methosulfate, Behentrimonium Chloride, Hydrolyzed Keratin, Cetyl Alcohol, Propylene Glycol Dicaprylate/Dicaprate, PPG-1 Trideceth-6, Trideceth-6, Trideceth-12, Polyquaternium-37, Cetearyl Alcohol, Butylene Glycol, Quaternium-91, Parfum (Fragrance), Acetyl Cedrene, Linalool, Dimethyl Phenethyl Acetate, Potassium Sorbate, Phenoxyethanol, Benzoic Acid, Dehydroacetic Acid.
- Volume
- 151-400ml
- Properties
- Heat protection
Smoothing (anti-frizz)
Straightening - Hair type/condition
- For all hair types
For unmanageable hair - Ingredients
- Keratin
- Usage
- For cutting and styling
- Product type
- Sprays
About OSMO
OSMO is a British professional haircare brand specialising in hair cleansing, conditioning, colour maintenance, toning and styling. Its history began in 2000 with two styling products, Aqua Wax and Wax Pomade. Initially focused on texture and hairstyle control, the brand gradually expanded into shampoos, conditioners, intensive treatments and specialised haircare.
OSMO develops and manufactures its products in the United Kingdom. The brand has strong connections with professional hairdressing and barbering, offering products designed around the practical needs of stylists. Many of its ranges are also suitable for everyday home use, allowing customers to build a haircare routine around their hair type and desired result.
What is OSMO known for?
OSMO is recognised for professional-performance products addressing moisture, smoothness, colour maintenance, toning and styling. Its Deep Moisture range is developed for dry, damaged and chemically treated hair. Selected formulations contain hydrolysed keratin, plant proteins and conditioning oils such as pataua or jojoba oil to help improve softness, shine and manageability.
The Wonder 10™ range combines several haircare benefits, including easier detangling, heat protection and colour care. Its shampoo and conditioner incorporate bond-building technology designed to strengthen and protect the hair. Other OSMO products use targeted pigments to adjust unwanted tones or refresh existing hair colour.
OSMO haircare and styling products
Shampoos, conditioners and hair masks
OSMO offers shampoos for cleansing and targeted care, alongside hair conditioners for softness and manageability. These can be complemented by hair masks when additional conditioning is needed.
Deep Moisture is particularly relevant for hair affected by dryness, heat styling or chemical treatments. Wonder 10™ provides a convenient multi-benefit approach, with shampoo, conditioner and leave-in care. Customers can combine rinse-out and leave-in products according to their hair's condition and the individual product instructions.
Toning and colour maintenance
Super Silver No Yellow uses violet pigments to help counteract unwanted yellow tones in blonde, grey and bleached hair. Colour Revive offers pigmented conditioning treatments designed to refresh existing shades between salon appointments while leaving hair feeling conditioned.
Additional ranges include Colour Save for colour-treated hair, Daily Blonde for blonde haircare and Planet Vivid for creative semi-permanent colour. These collections address different colour-related needs rather than offering the same treatment for every shade.
Hair styling and finishing
OSMO's hair styling products include waxes, pomades, pastes, gels and sprays. Different textures and hold levels allow stylists and home users to create definition, volume, flexible movement or more structured hairstyles. Styling products can be selected according to the finish and level of control required.
Who are OSMO products suitable for?
OSMO develops products for dry, damaged, colour-treated, blonde, grey, curly and fine hair, as well as a variety of styling requirements. The range is relevant to professional hairdressers and barbers, and to customers seeking salon-inspired haircare at home.
Choose a product by considering your hair texture, condition, scalp needs and preferred finish. Violet toning products are intended for specific colour concerns, while pigmented conditioners should be matched to the existing hair shade and used according to the manufacturer's directions.
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