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Outbound Apothecary Keystone product with packaging on a light gray background
  • Outbound Apothecary Keystone product with packaging on a light gray background
  • Outbound Apothecary Keystone antioxidant moisturizer on a black background with product details.
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KEYSTONE

KEYSTONE
ANTIOXIDANT DEFENSE MOISTURIZER

A facial moisturizer engineered for exposure and recovery. Keystone defends against daily stress, strengthens your barrier, and keeps skin hydrated and steady under pressure.

$44.00
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Zero Shine
Paraben Free
No Silicones
Fast Absorbing
Airless Bottle
THD Vitamin C
EVERY INGREDIENT HAS A JOB. What's inside. What it does. Why it matters.
KEYSTONE Antioxidant Defense Moisturizer
THD ASCORBATE Stable Vitamin C
What It Is A stable, oil-soluble form of Vitamin C.
What It Does Neutralizes free radicals from UV and environmental exposure. Supports collagen synthesis and reduces oxidative damage over time.
Why We Chose It Standard Vitamin C degrades fast and irritates skin. THD Ascorbate penetrates deeper, stays stable, and works without the sting.
RESVERATROL Plant Antioxidant
What It Is A polyphenol antioxidant found in plant skins and seeds.
What It Does Amplifies Vitamin C activity and defends against oxidative stress at the cellular level.
Why We Chose It Works synergistically with THD Ascorbate — the combination is significantly more effective than either ingredient alone under field conditions.
CoQ10 Coenzyme Q10
What It Is A naturally occurring antioxidant produced by every cell in the body.
What It Does Supports cellular energy production in the skin and neutralizes oxidative damage at the mitochondrial level.
Why We Chose It Production declines with age and environmental stress — exactly the conditions our customers operate in. Topical CoQ10 replenishes what exposure depletes.
HYALURONIC ACID HA
What It Is A naturally occurring humectant found in connective tissue.
What It Does Draws moisture into the skin and holds it there under low-humidity and high-output conditions.
Why We Chose It Dehydration is the first thing that breaks down skin performance under exposure. HA addresses it at the source without adding weight or grease.
JOJOBA OIL Simmondsia Chinensis
What It Is A liquid wax ester structurally similar to the skin's natural sebum.
What It Does Seals the moisture barrier without clogging pores. Absorbs fast and leaves no residue.
Why We Chose It Most occlusive oils feel heavy under load. Jojoba behaves like skin — it locks in hydration while staying completely non-greasy.
HEADWATER Performance Enzyme Cleanser
PAPAIN Papaya Enzyme
What It Is A proteolytic enzyme derived from papaya.
What It Does Breaks down the protein bonds holding dead skin cells to the surface, clearing them without physical friction or abrasion.
Why We Chose It Mechanical exfoliation damages skin under stress. Enzymatic action does the same job without the irritation — cleaner results, zero inflammation risk.
BROMELAIN Pineapple Enzyme
What It Is A proteolytic enzyme complex extracted from pineapple stem.
What It Does Works alongside Papain to break down dead skin, sweat residue, and environmental debris. Also has natural anti-inflammatory properties.
Why We Chose It The Papain + Bromelain combination creates a broader enzymatic action than either ingredient alone. More complete clearance, faster reset.
ALOE VERA Aloe Barbadensis
What It Is A gel-forming plant extract with documented soothing and hydrating properties.
What It Does Calms irritation and delivers immediate hydration post-cleanse, offsetting the potential dryness of enzyme activity.
Why We Chose It Enzymatic cleansers can leave skin feeling stripped. Aloe counterbalances that — the skin finishes clean and comfortable, not tight.
ALLANTOIN
What It Is A naturally occurring compound found in plants including comfrey root.
What It Does Promotes skin cell renewal, soothes irritation, and supports barrier recovery after exposure to sweat, heat, and environmental stressors.
Why We Chose It The skin after a hard day needs to recover, not just get clean. Allantoin accelerates that recovery process so the barrier is ready for the next round.
FULL INGREDIENT LIST

Water (Aqua), Caprylic/Capric Triglyceride, Propanediol, Simmondsia Chinensis (Jojoba) Seed Oil, Sodium Acryloyldimethyltaurate/VP Crosspolymer, Citric Acid, Argania Spinosa Kernel Oil, Resveratrol, Tetrahexyldecyl Ascorbate, Ubiquinone, Sodium Hyaluronate, Helianthus Annuus (Sunflower) Seed Oil, Rosmarinus Officinalis (Rosemary) Leaf Extract, Citrus Aurantium Dulcis (Orange) Peel Oil, Rosmarinus Officinalis (Rosemary) Leaf Oil, Cyclodextrin, Hydroxypropyl Beta-Cyclodextrin, Myristyl Glucoside, Polyglyceryl-6 Laurate, Lauryl Glucoside, Tetrasodium Glutamate Diacetate, Sodium Hydroxide, Phenoxyethanol, Ethylhexylglycerin, Sodium Benzoate
DIRECTIONS

Massage into face and neck after cleansing. Use AM, PM or both. Visit our FAQ to learn more.

Water droplet on a textured rock surface
DEFENDS AGAINST OXIDATIVE STRESS

Antioxidants like Resveratrol, Vitamin C, and CoQ10 form a protective shield against pollution, UV, and daily wear—helping prevent premature aging and keeping your skin’s defenses running at full capacity.

FAQ
What does Keystone actually do for me?

Keystone restores hydration, reinforces your skin's barrier and defends against stressors like wind, cold, heat, humidity, pollution and excessive blue light.

With consistent use skin looks steadier, smoother and more even.

Can I use it everyday?

Yes, we engineered Keystone for daily use in a variety of environments.

Which skin types is it best for?

All skin types, especially those that face exposure throughout the day. Keystone is non-comedogenic.

Will it help with redness or irritation?

Yes. Jojoba, Argan and Sunflower oils support the barrier while our antioxidant stack calms and repairs stressed skin.

Does it have a scent?

Keystone has no added fragrance. The natural oils we use (rosemary & orange) give off a subtle, clean scent that fades within a couple minutes of application.

Is it greasy or shiny?

No, Keystone is a lightweight gel cream that absorbs fast and leaves a natural finish.

Can I use it with sunscreen?

Yes. Keystone layers cleanly under SPF or after your cleanser.

What makes Keystone different?

8 proven active ingredients. Including Vitamin C, CoQ10, Resveratrol and Hyaluronic Acid. These and more combine for antioxidant defense, barrier support and lasting hydration for your face.

TOUGH CONDITIONS, SIMPLE ROUTINES, RELIABLE PERFORMANCE. THROW IT IN THE BAG. IT'LL KEEP UP.

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