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tideline
Tideline Age-Defying Serum, a white airless pump bottle on warm linen in soft window light
Age-Defying Serum applied to the neck and décolleté of a woman in warm light

treat · face & neck

age-defying serum

A serum for skin that has earned its lines.

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An emollient age-defying serum that drinks into the skin — hyaluronic acid and squalane for moisture, stabilised vitamin C and E to brighten and defend.

Age-Defying Serum applied to the neck and décolleté of a woman in warm light

the formulation note

a serum for skin that has earned its lines.

Skin in transition holds less water and shows time first. This serum answers it: sodium hyaluronate and squalane flood the skin with lasting moisture, while stabilised vitamin C (tetrahexyldecyl ascorbate) and vitamin E brighten and defend against daily stress.

A whisper of caffeine wakes tired skin; lavender keeps it calm. The finish is firmer, plumper, more luminous — never tight.

The neck and the décolleté are where the body skin shows time first — thinner dermis, fewer sebaceous glands, less lipid reserve. The face has thirty serums and a routine. The V where a robe falls open has, historically, nothing. Daily Cream was built for that triangle, on purpose, with peptides the face industry has had for a decade.

specifics

Two signal peptides — palmitoyl tripeptide-1 at 2 ppm and palmitoyl tetrapeptide-7 at 1 ppm — are suspended in a 1.2% sodium hyaluronate / glycerin matrix, with niacinamide at 4% and a sage olive leaf extract for tone support. The pH is held at 5.8. The texture is a thin cream that turns to water-feel in eight seconds and dries to a soft second-skin finish you can dress over. Application is upward — toward the jaw, never down toward the sternum — because the muscle and the cream both prefer it that way.

the difference

  • most body lotionsface-grade ingredients, never.
  • daily creampeptides, calibrated for body skin.
  • most applicationdown. Daily cream goes up.
read more on the formulation note

barrier

Niacinamide and ceramides for the lipid layer that thins.

water

Squalane for water that the body holds less of now.

tone

Sage olive extract for the skin that shows time first.

key ingredients

  • A frosted petri dish of niacinamide solution beside a small powder pile on bone-cream linen

    niacinamide

    vitamin B3, for the barrier that thins.

  • A frosted glass dropper bottle of squalane mid-drop, sage olive sprig in foreground

    squalane

    plant lipid, mimics what skin loses with age.

  • A small ceramic spoon of pale ivory peptide powder beside a folded muslin cloth

    palmitoyl tripeptide-1

    signal peptide, asks skin to build structure.

  • A bunch of fresh sage olive leaves on linen with a small ceramic dish of green-tinged extract

    sage olive extract

    olea europaea leaf, antioxidant for tone.

the ritual

three quiet steps.

01

clean skin

On the neck and décolleté, after the wash.

02

two pumps

No more — peptides do not need more.

03

up the neck, never down

Always upward. The skin remembers.

Water (Aqua), Glycerin, Isopropyl Palmitate, Dimethicone, Squalane, Hydroxyethylacrylate/Sodium Acryloyldimethyl Taurate Copolymer, Dipalmitoyl Hydroxyproline, Aloe Barbadensis Leaf Juice, Polysorbate 60, Isohexadecane, Hydrolyzed Soy Protein, Phenoxyethanol, Tocopheryl Acetate, Caprylyl Glycol, Ethylhexylglycerin, Hexylene Glycol, Lavandula Angustifolia (Lavender) Oil, Caffeine, Propylene Glycol, Tetrahexyldecyl Ascorbate, Sodium Hyaluronate, Sodium Hydroxymethylglycinate. 1 fl. oz. / 30 ml. Made in USA.

  1. 01clean skinOn the neck and décolleté, after the wash.
  2. 02two pumpsNo more — peptides do not need more.
  3. 03up the neck, never downAlways upward. The skin remembers.

Lab-tested for skin compatibility on body skin in transition. Cohort: 24 women, 8 weeks. Detailed write-up at /pages/science.

Made in small batches in the United States. Glass packaging. Refill program coming Q3 2026.

Vegan · cruelty-free · plastic-neutral via 1% for the Planet.

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Made in small batches

pair with the daily ritual

the ritual is three steps.

a closing note

Apply morning and evening to clean face and neck, before your oil and moisturiser.

read the full formulation note→

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