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Design Essentials Agave & Lavender Weightless Thermal Protectant Serum 4oz front
Design Essentials Agave & Lavender Weightless Thermal Protectant Serum 4oz back label

Design Essentials Agave and Lavender Weightless Thermal Protectant Serum 4oz

Design Essentials Agave & Lavender Weightless Thermal Protectant Serum 4oz shields hair up to 420°F, seals moisture, eliminates frizz and adds intense shine ideal for curly and coily hair.
£14.99
Tax included.
420°F heat shield for curly hair
Seals in moisture, eliminates frizz
Strengthens strands, prevents breakage
Weightless finish with brilliant shine

Pairs well with

Design Essentials Agave and Lavender Weightless Thermal Protectant Serum 4oz is a feather-light, silky serum engineered to shield textured, curly, and coily hair from heat damage during flat ironing, blow drying, and thermal styling, delivering up to 420°F of protection whilst leaving hair with a frizz-free, glossy finish.

Key Benefits for Natural, Curly and Coily Hair

This weightless thermal protectant serum delivers exceptional heat defence without weighing hair down, making it ideal for women with natural, curly, coily, and wavy hair textures who want smooth, healthy-looking results from their thermal styling routine. The advanced formula seals the hair cuticle from the inside out, locking in moisture and drastically reducing frizz, so your style lasts longer and looks more polished from root to tip.

Regular use of this thermal protectant increases the hair’s tensile strength and improves density, meaning each strand is better equipped to withstand the stresses of heat styling. By reinforcing the hair shaft and reducing shedding at the root, the serum actively promotes healthier, fuller-looking hair growth over time. Whether you’re silk pressing 4C coils or smoothing 2B waves, this serum creates a protective barrier that minimises thermal damage and maximises shine.

The formula is completely free from sulfates, parabens, paraffin, mineral oil, petrolatum, and DEA, making it a clean, conscious choice for those who want effective heat protection without harsh chemicals.

It glides through the hair effortlessly, absorbs quickly, and leaves no greasy residue behind, ensuring your finished look is sleek, light, and full of brilliant shine.

Hero Ingredients and What They Do

Agave Tequilana Leaf Extract is the star of this formula, a deeply conditioning botanical rich in natural sugars and humectants that draw moisture into the hair shaft, softening and strengthening strands from within. Lavandula Angustifolia (Lavender) Flower Extract complements agave beautifully, nourishing the scalp and hair with its natural antioxidant and antimicrobial properties, whilst also adding a calming, beautiful fragrance to the styling experience.

Mangifera Indica (Mango) Fruit Extract acts as an intensive moisturiser, infusing each strand with essential fatty acids that improve elasticity and suppleness � critical for preventing breakage during thermal styling. Vitis Vinifera (Grape) Seed Extract adds a further layer of antioxidant protection, shielding hair from environmental stressors. Dimethiconol coats each strand with a fine, heat-resistant film that smooths the cuticle, boosts shine, and dramatically reduces frizz during and after styling.

How to Use

Begin with freshly washed, conditioned hair. After blow drying with a heat protectant primer, dispense a small amount of the serum into your palms and distribute evenly through dry or damp hair, working from mid-lengths to ends. Avoid applying directly to the roots to prevent any build-up at the scalp. Once distributed, proceed immediately to flat iron, curl, or silk press hair as desired. For best results, use in combination with the Design Essentials Agave & Lavender Blow-Dry & Heat Shield as part of a complete thermal styling routine. A little goes a long way. Start with a small amount and add more if needed for thicker or longer hair.

Who Is This Heat Protectant For?

This thermal protectant serum is formulated for all textured hair types from 2A to 4C, including wavy, curly, coily, and kinky hair. It is especially well-suited for those with finer natural hair who have previously avoided serums due to fear of greasiness or product build-up. It is also excellent for women of African and Caribbean heritage who regularly use heat to stretch or straighten their natural hair, as well as those with mixed-heritage or biracial hair who want a reliable, lightweight heat shield that works with their curl pattern rather than against it.

Product Details

Size: 4oz (118ml). Texture: lightweight, fast-absorbing serum. Free from: sulfates, parabens, paraffin, mineral oil, petrolatum, and DEA. Heat protection up to 420°F. Suitable for all textured hair types.

Why Choose Design Essentials Agave & Lavender Weightless Thermal Protectant Serum?

Design Essentials has been a trusted name in professional textured hair care for decades, formulating products specifically for the needs of natural, curly, and coily hair. The Agave & Lavender Weightless Thermal Protectant Serum reflects the brand’s commitment to clean, effective formulations that deliver salon-quality results at home. Stocked and shipped from the UK, this product is the perfect addition to any natural hair toolkit for women who refuse to compromise on the health of their hair or the quality of their style.

  1. After blow drying, dispense a small amount of serum into your palms and distribute evenly through dry or damp hair, working from mid-lengths to ends.
  2. Avoid applying directly to the roots to prevent build-up, then proceed to flat iron, curl, or silk press hair as desired.
  3. For best results, use as part of the full Design Essentials Agave & Lavender thermal styling routine for maximum heat protection and shine.

Isopropyl Palmitate, C13-15 Alkane, Dimethiconol, Agave Tequilana Leaf Extract, Lavandula Angustifolia (Lavender) Flower Extract, Vitis Vinifera (Grape) Seed Extract, Mangifera Indica (Mango) Fruit Extract, Ethylhexyl Methoxycinnamate, Parfum

United Kingdom:

  • All orders are dispatched within 24 hours
  • Please allow at least 2-4 working days for delivery.
  • Restrictions will apply on deliveries on National & Bank Holidays.

Express Shipping:

  • Express shipping is available Mon-Thurs till GMT 2pm & Friday till GMT 1pm to get the order for the next working day. Our express shipping orders success rate is 99%. National & Bank Holidays may affect express shipping.

For more information on our shipping policy please see HERE.