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The Duo Serum Kit

Lash serum + Hair serum

$81.90 $99.90

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  • Trust Icon Non-greasy serums
  • Trust Icon Daily use
  • Trust Icon Free from silicones, sulfates & parabens
  • Trust Icon Carefully selected ingredients

Give them a growth boost with the Duo Serum Kit, a powerful combination of tothelash and tothehair, expertly formulated to stimulate growth, strengthen the fiber, and deeply nourish.

tothelash – Lengthens, thickens, and strengthens lashes with biotin, keratin, and castor oil, while protecting them from breakage.

tothehair – Promotes faster growth, reinforces hair fiber, and nourishes the scalp with biotin, peptides, and vitamins E & B.

A powerful synergy to reveal the full beauty of your lashes and hair.

DELIVERY & RETURNS
Region Price Delivery
Orders above $45 Free shipping 3-5 business days
International delivery According to location 5-10 business days
INGREDIENTS

The Duo Serum Kit is formulated with naturally-derived ingredients designed to strengthen your hair and lashes while improving their overall health day after day. Our innovative formulas combine powerful actives to deliver essential nutrients, support growth, and make them visibly stronger, fuller, and healthier.

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The Duo Serum Kit

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THE PERFECT ROUTINE

FOR DREAM HAIR

  • Apply 3 to 5 drops to clean, dry scalp
  • Gently massage
  • Use daily for optimal results

NATURAL INGREDIENTS

The Tothehair and Tothelash serums are made with naturally-derived ingredients for stronger hair, boosted growth, and fuller lashes. Our innovative formulas harness the power of natural actives to provide your hair and lashes with the nutrients they need.

Keratin

Hyaluronic Acid

Castor Oil

Rice Protein

Ginseng Roots

Rosemary


Frequently asked questions

ARE THE SERUMS GREASY?
No, both the Tothehair and Tothelash serums have lightweight, non-greasy textures. The Tothehair serum is quickly absorbed into the scalp and can be applied before blow-drying without weighing the hair down or leaving any residue, whether on dry or damp hair. The Tothelash serum is non-sticky and doesn’t weigh down the lashes. It’s also compatible with lash extensions. These formulas are designed for light, everyday use.
SHOULD THE SERUMS BE USED DAILY?
Yes, for optimal results, daily application is essential. Tothelash should be applied every evening to clean lashes. Tothehair is meant to be used on the scalp every day, gently massaging to stimulate circulation and encourage growth.
HOW LONG DOES IT TAKE TO SEE RESULTS?
You can start seeing the first results from Tothelash after just three weeks, with noticeable improvement after 30 days. With regular use, Tothehair delivers visible results in about six weeks.
ARE THE FORMULAS SUITABLE FOR SENSITIVE SKIN?
Yes, our serums are made with carefully selected ingredients, making them suitable for sensitive skin, fragile lashes, and delicate scalps.
CAN BOTH SERUMS BE USED AT THE SAME TIME?
Yes, both serums are designed to be used together as part of your daily routine. Tothelash should be applied every evening to the lash line, while Tothehair is applied to the scalp to stimulate growth. Their combined action helps strengthen and densify both lashes and hair for faster, more visible results.

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