What Every Parent Needs to Know Before Bathing Their Baby

There’s something magical about bathing a newborn. The warmth, the soft skin, the way they look up at you with those wide, trusting eyes. It’s also one of the moments when you are most directly exposing your baby’s skin to whatever is in that bottle of wash or lotion. Baby skin is structurally different, far more permeable, and significantly more vulnerable to chemicals in conventional skincare products.

Why Baby Skin Needs a Different Standard

A newborn’s skin barrier is still developing and won’t reach the same protective capacity as adult skin until around two to three years of age. The outer layer is thinner, more porous, and has a higher surface-area-to-body-weight ratio — meaning babies absorb a proportionally greater amount of whatever is applied to their skin.

The Therapeutic Goods Administration (TGA) regulates listed medicines but does not require pre-market safety testing for cosmetics. This means that a product labelled ‘baby’ can legally contain synthetic fragrances, preservatives, and potentially harmful compounds without independent safety verification.

Toxic Ingredients to Avoid in Baby Skincare

When reading labels on baby products, these are the ingredients that warrant serious scrutiny:

• Sodium Lauryl Sulfate (SLS) / Sodium Laureth Sulfate (SLES) — Foaming agents that strip the skin’s natural oils and disrupt the delicate acid mantle of baby skin. Linked to increased skin permeability and irritation, particularly problematic in eczema-prone skin.
• Parabens (Methylparaben, Propylparaben, Butylparaben) — Synthetic preservatives that act as endocrine disruptors, mimicking oestrogen in the body. Particularly concerning for infants whose hormonal systems are in critical early development.
• Synthetic Fragrance / Parfum — ‘Fragrance’ is an umbrella term that can hide dozens or hundreds of undisclosed chemicals. There is no safe level of synthetic fragrance for newborns.
• Mineral Oil & Petrolatum — Occlusive ingredients derived from crude oil that block pores and impede the skin’s natural function. Often found in conventional nappy creams and baby oils.
• Phthalates — Plasticisers often hidden within ‘fragrance’ formulations. Known endocrine disruptors linked to developmental issues in animal studies.
• PEG Compounds — Penetration enhancers that can carry other harmful ingredients deeper into the skin. Often contaminated with ethylene oxide and 1,4-dioxane, both classified as possible carcinogens.
• DMDM Hydantoin & Formaldehyde Releasers — Preservatives that slowly release formaldehyde — a known human carcinogen — to extend shelf life.

What to Look for Instead: Safe, Certified Organic Ingredients

Baby skincare doesn’t need to be complicated. The simpler the ingredient list, the better. Look for products with plant-derived, COSMOS-certified organic ingredients. Ingredients that are genuinely beneficial and safe for baby skin include: certified organic olive oil derivatives (gentle cleansers that preserve the skin barrier), chamomile extract (powerfully anti-inflammatory and calming), shea butter (richly emollient), vitamin E (antioxidant that protects and conditions), lavender (naturally antimicrobial and calming for bath-time routines), and plant-based glycerin (safe humectant that retains moisture without blocking pores).

The Little Humans Collection

At Naturally COS, the Little Humans Collection was developed by mums, tested by real babies, and formulated with one non-negotiable standard: every ingredient must be certified organic, safe, and purposeful. No fillers. No synthetics. No greenwashing.

Little Humans Body Wash A 100% pure Castile soap baby wash made from premium cold-pressed extra-virgin olive oil. No palm or coconut oils, no foaming additives, no fragrances, no preservatives. Ingredients: Potassium Olivate · Chamomile · May Chang · Citric Acid Shop now →

Little Humans Body Lotion Light, creamy COSMOS-certified formula with lavender and vanilla for that precious post-bath cuddle moment. Nourishing without heaviness. Ingredients: Lemon Myrtle Extract · Olive Leaf Extract · Shea Nut Butter · Jojoba Oil · Safflower Oil · Lavender · Vanilla · Vitamin E Shop now →

Little Humans Nappy Balm Organic solution for nappy rash and sore baby bottoms. Zero petrol derivatives, zero allergen-causing fragrances. Just plants, working beautifully. Ingredients: Olive Wax · Shea Butter · Coconut Oil · Chamomile · Lavender · Madagascan Vanilla · Vitamin E Shop now →

 

Why the Body Wash Stands Out

The Little Humans Body Wash is blended over three days to preserve the full antioxidant profile of cold-pressed olive oil. The naturally antibacterial properties of May Chang provide gentle antimicrobial support without harsh chemicals, while chamomile soothes sensitive or irritated skin. It’s also excellent for use on sensitive scalps.

Why the Nappy Balm is Different

Most conventional nappy creams contain petrolatum (petroleum jelly) derived from crude oil. Our nappy balm uses olive wax and shea butter as its base — both plant-derived emollients that protect the skin barrier while actively conditioning and repairing delicate tissue. Chamomile and lavender provide genuine anti-inflammatory relief for sore, rashy skin.

Building a Simple, Safe Baby Skincare Routine

Bath time: A small amount of the Little Humans Body Wash is all you need — its pure castile formula goes a long way and rinses cleanly without residue.

After the bath: Gently pat skin dry and apply the Little Humans Body Lotion while skin is still slightly warm. The lavender and vanilla create a calming, sleep-ready atmosphere.

Nappy changes: Apply a thin layer of Little Humans Nappy Balm to a clean, dry nappy area at every change. For active nappy rash, apply more generously and as often as needed.

The Takeaway

Your baby’s skin is precious, absorbent, and still developing. The products you choose in those early months aren’t just about keeping skin clean and soft — they’re about laying the foundation for long-term skin health. Choosing certified organic, genuinely toxin-free baby skincare is a practical act of care.

For more guidance on ingredient safety, visit the EWG Skin Deep database or Naturally COS.