Products you should apply before getting into the pool

A swimming pool is a delicate chemical ecosystem where every organic residue disrupts the sanitization balance. When a swimmer enters the water, the skin carries perspiration, dead cells, and cosmetic residues that react immediately with sanitizing agents. Applying the right products before diving in protects both the swimmer’s body and the water chemistry.

Mineral sunscreen instead of chemical formulas

Conventional sunscreens contain chemical filters (such as oxybenzone and avobenzone) and soluble oily bases that quickly wash off upon contact with water.

• They form an oily surface sheen known as a surface lipid layer, which saturates mechanical filters and hinders natural water aeration.
• As they break down under UV radiation and interact with chlorine, these compounds deplete active free chlorine, converting it into ineffective combined chlorine.
• The best practice is to apply a water-resistant mineral or physical sunscreen formulated with zinc oxide or titanium dioxide, allowing it to absorb completely for at least 20 minutes before entering. These minerals are water-insoluble and remain anchored to the skin barrier.

Light botanical oils on the hair

Chlorine exhibits a direct chemical affinity for hair keratin: it oxidizes disulfide bonds, lifts the cuticle, and strips the hair shaft of its natural sebum.

• The greenish tint seen in lighter hair is not caused by chlorine alone, but by trace amounts of oxidized copper in the water adhering to damaged cuticles.
• Applying a light layer of hydrophobic plant oil (such as coconut, argan, or jojoba oil) to mid-lengths and ends creates a water-repellent barrier without leaving heavy surface scum behind.

Pre-rinsing with fresh water (the invisible barrier)

Skin and hair behave like porous sponges with finite absorption capacity.

• If dry hair and skin enter the pool, they absorb chemical-saturated pool water up to their cellular saturation limit.
• Rinsing thoroughly under fresh shower water for sixty seconds fully saturates pores and hair cuticles with clean water, significantly limiting the penetration of oxidizers and mineral salts.

pH-balanced leave-in conditioner

When botanical oils are not preferred, a swimmer-specific leave-in conditioner formulated with a slightly acidic pH (between 4.5 and 5.5) helps keep the cuticle scales mechanically closed, preventing oxidizing chemical residues from penetrating the core.

Pre-pool preparation minimizes the buildup of chloramines—the actual source of sharp chemical odors and eye irritation—keeping pool water crystal clear and skin protected.