Science Backed Naturals Bald Block Hair Loss Serum 10% RU58841 — Extra-Large Glass Bottle, Once-Daily DHT Receptor Support

Bald Block is a topical hair serum formulated with 10% RU58841 designed to target scalp DHT receptors and support the environment for healthier-looking hair in men and women.

This formulation from Science Backed Naturals (White Rabbit line) delivers a high-concentration RU58841 solution in an extra-large glass bottle. It’s intended for once-daily topical application to the scalp and packaged in glass to minimize plastic contact. The formula focuses on local scalp receptor interaction rather than systemic hormone changes, offering an alternative to oral DHT-reducing treatments.

How should I use Bald Block in my daily routine?

Apply once daily to a clean, dry or towel-dried scalp—preferably after showering at night. Use the included dropper to place 1–2 ml directly where thinning is present and gently spread to cover the treatment area. Allow the serum to absorb fully before using styling products or going to bed.

• Recommended dose: 1–2 ml per application
• Best used after washing and towel-drying the scalp
• Apply at night to allow overnight absorption
• Store in a cool, dry place away from direct sunlight

What makes this product different from standard hair treatments?

Bald Block contains 10% RU58841, a topical ligand designed to bind scalp androgen receptors rather than lowering systemic DHT levels. The extra-large glass bottle increases value and reduces plastic contact. It’s intended as a targeted topical option rather than an oral systemic therapy.

• Topical RU58841 at 10% concentration
• Targets scalp receptor interaction, not systemic DHT reduction
• Extra-large glass bottle for longer supply and reduced plastic exposure
• Once-daily dosing vs. some twice-daily regimens

Are there side effects or precautions I should know about?

Topical treatments can cause local reactions in some users, such as irritation or sensitivity. Because Bald Block is applied to the scalp, systemic hormone changes are not the intended outcome; still, monitor your skin for redness, itching, or unusual reactions and discontinue use if persistent irritation occurs. Consult a healthcare professional if you have concerns or are taking other medications.

• Possible local irritation—stop if severe or persistent
• Not intended to alter systemic hormone levels
• Avoid contact with eyes and mucous membranes
• Consult a doctor if pregnant, nursing, or on other treatments

How long before I can expect to see results?

Topical hair-support products work gradually; individual responses vary. Many users evaluate progress over several months. Maintain consistent once-daily application and use photos or measurements to track subtle changes over time.

• Evaluate results after several months of consistent use
• Use photos to monitor progress objectively
• Combine with a healthy scalp routine for best support
• If no change after extended use, reassess routine or consult a specialist

Who is this for: Bald Block is aimed at adults seeking a high-concentration topical option to target scalp androgen receptor activity as part of a hair-support routine. It suits men and women who prefer a once-daily topical application and want a product packaged in glass. This product is not a medical cure; individuals with underlying scalp conditions or those on systemic hormone therapies should consult a healthcare professional before starting any new topical regimen.