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Kids Eczema Support: From Infants to Teens

Rebuild the skin barrier from the inside out. Science-backed topicals and L-histidine supplements for every age.

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Why the skin barrier matters in childhood eczema

In eczema, the skin barrier is weaker—moisture escapes, irritants get in, and skin becomes dry, itchy, and inflamed. Young skin is still developing, so it needs extra support, inside and out. Codex Labs focuses on rebuilding and maintaining the skin barrier with topical eczema care and L-histidine supplements optimized for infants, toddlers, kids, and teens.

Why do parents trust Codex Labs?

Parents trust Codex Labs because eczema-prone skin needs more than surface treatment—it requires addressing root causes like gut health, inflammation, and environmental triggers. We also protect the developing microbiome so all our products are certified microbiome-friendly.

HOW TO USE THE SYSTEM

INFANTS

THE DAILY ROUTINE: CLEANSE, SEAL, STRENGHTEN

STEP 1: CLEANSE IRRITANTS
Bathe baby with lukewarm water and Bia Unscented Soap to gently remove saliva, sweat and allergens without stripping natural oils or the skin microbiome.

Action: Clean with hands, a soft cloth or Waschie, then pat skin damp (don’t rub) with a soft towel.

STEP 2: SEAL THE BARRIER
While skin is damp, massage a generous layer of Bia Eczema Relief Lotion over the whole body, not just red spots.

Focus: Add extra protection to drool chins, neck folds and the nappy area.

STEP 3: BUILD BARRIER STRENGTH FROM WITHIN
Mix one sachet of Bia Infant & Toddler Skin Barrier Support into room temperature formula, breastmilk or puree once daily.

Reason: Nutritional support of immunity and filaggrin production for better hydration and skin resilience.

INFANTS (3–12 MONTHS)

TODDLERS

THE DAILY ROUTINE: CLEANSE, RESTORE, FORTIFY

STEP 1: GENTLY CLEANSE
Quick lukewarm bath with Bia Unscented Soap to remove sweat and irritants without stripping oils or the microbiome. Build an evening ritual where bathtime is fun!

Action: Use hands, a Waschie or soft cloth, rinse, then pat skin damp (don’t rub).

STEP 2: RESTORE HYDRATION
While skin is slightly damp, apply a thick layer of Bia Eczema Relief Lotion to lock in moisture—massage over the whole body, not just flares.

Focus: Extra lotion for diaper folds, wrists, behind knees and neck creases.

STEP 3: FORTIFY BARRIER FROM THE INSIDE
Mix two sachets of Bia Infant & Toddler Skin Barrier Support into food or drink once daily.

Reason: Nutritional support of immunity and filaggrin production for better hydration and skin resilience.

Toddler boy with eczema on checks

KIDS

THE DAILY ROUTINE: CLEANSE, PROTECT, REBUILD

STEP 1: SOFTLY CLEANSE
Use lukewarm water and Bia Unscented Soap to remove sweat and dirt without drying skin.

Action: Use a Waschie or soft cloth, rinse, then pat dry leaving skin slightly damp.

STEP 2: PROTECT THE BARRIER
Apply Bia Eczema Relief Lotion generously over the body, especially inner elbows, knees and behind ears.

Focus: Use at least twice daily and after swimming, heavy sweating, or pet play.

STEP 3: REBUILD INTERNALLY
Give Bia Kids Skin Barrier gummies—4 berry-flavoured gummies daily (2 AM, 2 PM).

Reason: Nutritional support of immunity and filaggrin production for better hydration and skin resilience.

Kids arms with Eczema

TEENS

THE DAILY ROUTINE: PURIFY, DEFEND, SUPPORT

STEP 1: BALANCE CLEANSING
Use lukewarm water and Bia Unscented Soap; keep showers short and avoid hot water.

Action: Clean with a Waschie glove or soft cloth, rinse, and pat skin slightly damp.

STEP 2: DEFEND THE BARRIER
Apply Bia Eczema Relief Lotion generously everywhere to soothe and lock in moisture.

Focus: Cover face, neck, hands, and flexural folds; reapply after washing or activity.

STEP 3: SUPPORT FROM WITHIN
Mix one Antü sachet into water once daily (raspberry lemonade).

Reason: Nutritional support of immunity and filaggrin production for better skin barrier function.

Teen with Eczema on her face

HOW OUR SYSTEMS WORK ON THE OUTSIDE

BIA ECZEMA RELIEF LOTION + BIA UNSCENTED SOAP

Strengthen the skin barrier

Strengthen the skin barrier
Emollients and ceramides plug “gaps" in the skin barrier, locking in moisture and keeping irritants out. Humectants pull water in to reduce dryness. BiaComplex helps boost natural barrier proteins.

Rebalance Skin Microbiome

Rebalance Skin Microbiome
Our soap and lotion are microbiome-friendly and skip harsh chemicals that can upset skin. By protecting the "good" microbes, they help reduce irritation and the risk of Staph.

CALM ITCH & IRRITATION

CALM ITCH & IRRITATION
Plant-biotech actives and gentle dermatology ingredients calm redness, ease itch/stinging, help skin recover after scratching and support the skin microbiome to stave off Staph.
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HOW OUR SYSTEMS WORK FROM THE INSIDE
Skin Barrier Support Supplements

L-histidine is an amino acid that helps make filaggrin, a protein important for the skin’s outer layer and natural moisture retention. Our supplements combine L-histidine with antioxidants, vitamins, and minerals to help strengthen the skin barrier and keep skin hydrated and soft.


Each age group gets a formula made for their skin needs:
Infants & Toddlers:
 L-histidine + zinc + skin vitamins + vitamin C
Kids: L-histidine + zinc + skin vitamins + vitamin D
Teens: L-histidine + M3 antioxidant

Watch our founders TEDX TALK

What if the key to healing your skin wasn't a cream? Our founder Barb explores how compromised skin can be treated through the skin-gut-brain-biome connection.

Banner Image Watch the TEDx talk